Elliptical exercise machine

Abstract

Disclosed in the embodiments of the present application is an elliptical exercise machine. The elliptical exercise machine comprises a rack, handlebars, crank-rocker assemblies, and amplitude reduction mechanisms, wherein each of the crank-rocker assemblies comprises a swing member, a crank, and a link, the upper ends of the swing member and the crank are both rotatably connected to the rack, the front end of the link is rotatably connected to the swing member, and the rear portion of the link is rotatably connected to the crank; each of the handlebars is in transmission connection with the swing member by means of the amplitude reduction mechanism, and the swing member pushes a connection point of the amplitude reduction mechanism to move up and down, such that the swing amplitude of the handlebar is smaller than that of the swing member. Therefore, the elliptical exercise machine effectively reduces the swing amplitude of the handlebars while achieving a large stride, thereby improving the use comfort of a user.

Description

Elliptical trainer

[0001] Cross-reference of related inventions

[0002] This invention claims priority and benefit from the following patent applications: Chinese Patent Application No. 202520172178.8, entitled "Elliptical Trainer," filed January 24, 2025; Chinese Patent Application No. 202520173947.6, entitled "Lower Limb Training Device with Elliptical Path," filed January 24, 2025; Chinese Patent Application No. 202520174296.2, entitled "Elliptical Trainer," filed January 24, 2025; Chinese Patent Application No. 202520173932.X, entitled "Foot Pedal Trainer," filed January 24, 2025; and Chinese Patent Application No. 202520172797.7, entitled "Circular Swing Leg Trainer," filed January 24, 2025; the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of fitness training equipment technology, and in particular to an elliptical trainer. Background Technology

[0004] The elliptical trainer is an indoor fitness equipment used for cardiovascular endurance training. During use, the user grips the handrails at the top of the machine, pedals with their feet, and swings their arms back and forth along the handrails, resulting in an elliptical overall movement trajectory for the feet.

[0005] In existing technology, elliptical trainers typically include handrails and a crank-rocker assembly. The crank-rocker assembly includes a rocker arm, a connecting rod, and a crank component. The crank component is rotatably connected to the connecting rod, and the foot pedal assembly is connected to the connecting rod and drives the rocker arm to swing. Therefore, the stride length of the foot pedal assembly matches the swing amplitude of the rocker arm. However, the handrails are usually directly connected to the rocker arm, making their swing amplitude consistent with the rocker arm. Therefore, when the stride length is large, the swing amplitude of the handrails also increases, resulting in an excessive range of arm swing for the exerciser during exercise, affecting comfort and the overall experience.

[0006] The above content is only used to help understand the technical solution of the application and does not represent an admission that the above content is prior art. Summary of the Invention

[0007] In view of the above problems, this application proposes an elliptical exercise machine, which aims to solve the technical problem of excessive swing amplitude of the handrails in traditional elliptical exercise machines.

[0008] To achieve the above objectives, the elliptical trainer proposed in this application includes a frame, a crank-rocker assembly, and a stepping assembly;

[0009] The crank-rocker assembly includes a rocker element, a crank element, and a connecting rod. The upper ends of the rocker element and the crank element are rotatably connected to the frame. The front end of the connecting rod is rotatably connected to the rocker element, and the rear end of the connecting rod is rotatably connected to the crank element.

[0010] The elliptical trainer also includes handrails and an amplitude reduction mechanism. The amplitude reduction mechanism has a connection point that can move up and down. The handrail is connected to the rocker arm through the amplitude reduction mechanism. The rocker arm pushes the connection point of the amplitude reduction mechanism to move up and down, so that the amplitude of the handrail is smaller than the amplitude of the rocker arm.

[0011] In one embodiment, the step assembly includes a connector, a linkage rod, and a foot pedal located above the linkage rod. The foot pedal and the linkage rod are slidably coupled back and forth. The connector is fixedly connected to the foot pedal. One end of the linkage rod is rotatably connected to the connector, and the other end of the linkage rod is rotatably connected to the lower end of the rocker or crank component. The connection point between the rocker and the frame is lower than or flush with the highest point of the foot pedal during movement.

[0012] Furthermore, the handrail is detachable or foldable relative to the rocking component.

[0013] The elliptical trainer of this application incorporates a damping mechanism, which prevents the handrails from being directly connected to the swinging component. Instead, the swinging component first pushes the connection point on the damping mechanism upward or downward, and then drives the handrails to swing. In this way, the damping mechanism makes the swing amplitude of the handrails smaller than that of the swinging component. Thus, the elliptical trainer can achieve a large stride while effectively reducing the swing amplitude of the handrails, thereby improving user comfort.

[0014] To achieve the above objectives, the elliptical trainer proposed in this application includes a frame, handrails, a crank-rocker assembly, and a damping linkage, wherein,

[0015] The handrail is rotatably connected to the frame at the first hinge point;

[0016] The crank-rocker assembly is rotatably connected to the frame. The crank-rocker assembly includes a crank, a rocker, and a connecting rod. The rocker is rotatably connected to the frame at a second hinge point. The two ends of the connecting rod are rotatably connected to the crank and the rocker, respectively. The foot pedal module is connected to the connecting rod and is also connected to the rocker or the crank.

[0017] One end of the amplitude-reducing linkage is rotatably connected to the handrail at the third hinge point, and the other end is rotatably connected to the rocker at the fourth hinge point. The first hinge point, the second hinge point, the third hinge point, and the fourth hinge point are all spaced apart.

[0018] On the handrail, the portion between the first hinge point and the third hinge point constitutes a first swing segment; on the rocker arm, the portion from the second hinge point to the fourth hinge point constitutes a second swing segment; the first swing segment and the second swing segment swing in the same direction, and the length of the first swing segment is greater than the length of the second swing segment, so that the swing amplitude of the handrail is less than the swing amplitude of the rocker arm.

[0019] This elliptical trainer utilizes a damping linkage where the two ends of a linkage are rotatably connected to the first swing segment of the handrail and the second swing segment of the rocker arm. This design prevents the handrail and rocker arm from being directly connected, allowing for flexible adjustment of the motion ratio between them. Furthermore, the first and second swing segments swing in the same direction, while the handrail and rocker arm swing in opposite directions, preventing the user from using the same hand and foot simultaneously.

[0020] Secondly, the armrest's swing amplitude is reduced by setting the length of the first swing segment to be greater than the length of the second swing segment. In this process, the damping linkage acts like a lever, connecting the armrest and the swing component. The difference in length between the first and second swing segments determines the armrest's swing amplitude. That is, this application reduces the armrest's swing amplitude using the lever principle. When a force is applied to a point, the effect of the force is proportional to the length of the lever arm. Simply put, the longer the lever arm, the smaller the resulting rotation amplitude; conversely, the shorter the lever arm, the larger the rotation amplitude. Therefore, in this application, the length of the first swing segment is greater than the length of the second swing segment, so that the armrest's swing amplitude is smaller than the swing component's swing amplitude.

[0021] To achieve the above objectives, the elliptical trainer proposed in this application includes a frame, a motion module, and handrails. The frame includes a vertical pole extending longitudinally. The motion module includes two motion components located on either side of the frame in the left-right direction. Each motion component includes a crank-rocker structure and a foot pedal. The crank-rocker structure includes a swing member, a connecting rod, and a crank. The swing member is rotatably connected to the vertical pole. The two ends of the connecting rod are rotatably connected to the swing member and the crank, respectively, and the crank is rotatably connected to the frame. The foot pedal is connected to the connecting rod and is drively connected to the swing member or the crank. The handrails are rotatably connected to the vertical pole, and the lower end of the handrails rotates with the swing member and can slide up and down.

[0022] The lower end of the handrail of this elliptical trainer rotates and slides up and down in conjunction with the swinging component, causing the swing amplitude of the handrail to be inconsistent with that of the swinging component. Specifically, when the swinging component produces a large swing amplitude, the height of the connection point between the handrail and the swinging component changes and adjusts due to the up-and-down sliding motion, thus resulting in a smaller swing amplitude for the handrail. This avoids the excessive swing of the handrail itself caused by the large swing amplitude of the swinging component in traditional elliptical trainers, ensuring that the handrail can always provide optimal support during exercise, so that users do not need to frequently adjust their posture or worry about falling.

[0023] To achieve the above objectives, the elliptical exercise machine proposed in this application includes a frame, handrails, a crank-rocker assembly, and an amplitude reduction mechanism. The crank-rocker assembly includes a crank component, a rocker component, and a connecting rod. The crank component and the rocker component are rotatably connected to the frame. The two ends of the connecting rod are rotatably connected to the crank component and the rocker component, respectively. The handrails are rotatably connected to the frame.

[0024] The amplitude reduction mechanism includes a first transmission wheel, a second transmission wheel, and a transmission component. The first transmission wheel is fixedly connected to the handrail assembly, and the second transmission wheel is fixedly connected to the swing component. The transmission component drives the first transmission wheel and the second transmission wheel. The transmission ratio between the second transmission wheel and the first transmission wheel is greater than 1, so that the swing angle of the handrail assembly is smaller than the swing angle of the swing component.

[0025] The circular elliptical exercise device of this application sets a transmission device between the crank rocker assembly and the handrail assembly so that the handrail assembly and the swinging component are not directly connected, thereby allowing the motion ratio between the handrail assembly and the swinging component to be flexibly adjusted.

[0026] Secondly, power is transmitted from the pedal module to the crank rocker assembly, and then to the armrest assembly via a transmission device. This means the second transmission wheel is the driving wheel, and the first transmission wheel is the driven wheel. Therefore, the transmission ratio between the second and first transmission wheels is greater than 1, indicating that the rotational speed of the second transmission wheel is greater than that of the first transmission wheel. Consequently, in the same amount of time, the rotation angle of the first transmission wheel is smaller than that of the second transmission wheel, thus reducing the swing angle of the armrest assembly. This results in the armrest assembly's swing angle being smaller than that of the swinging component. With this reduced swing amplitude, the user's arm movement range becomes more comfortable, especially during longer strides, avoiding discomfort caused by excessive arm swing and enhancing the smoothness and comfort of movement. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 shows a schematic diagram of the structure of the first embodiment of the elliptical trainer of this application;

[0029] Figure 2 is a front view of the elliptical trainer in Figure 1;

[0030] Figure 3 is a structural schematic diagram of the second embodiment of the elliptical fitness device of this application;

[0031] Figure 4 is a cross-sectional view of the step assembly, connecting rod, and crank of the elliptical trainer in Figure 3 after assembly at one angle.

[0032] Figure 5 is a structural schematic diagram of the third embodiment of the elliptical fitness device of this application;

[0033] Figure 6 is an assembly diagram of the first embodiment of the step assembly and connecting rod of the elliptical fitness device of this application;

[0034] Figure 7 is an assembly diagram of the step assembly and connecting rod of the elliptical fitness device of this application in a second embodiment.

[0035] Figure 8 is a rear view of the structure in Figure 7;

[0036] Figure 9 is an assembly diagram of the third embodiment of the step assembly and connecting rod of the elliptical fitness device of this application;

[0037] Figure 10 is a schematic diagram of the structure in Figure 9 from another angle;

[0038] Figure 11 is an assembly diagram of the step assembly and connecting rod of the elliptical fitness device of this application in the fourth embodiment;

[0039] Figure 12 is a schematic diagram of the structure in Figure 11 from another angle;

[0040] Figure 13 is an assembly diagram of the fifth embodiment of the step assembly and connecting rod of the elliptical fitness device of this application;

[0041] Figure 14 is a structural schematic diagram of an embodiment of the connecting rod of the elliptical fitness device of this application;

[0042] Figure 15 shows a structural schematic diagram of the fourth embodiment of the elliptical trainer of this application;

[0043] Figure 16 is a schematic diagram of the fourth embodiment of the elliptical trainer;

[0044] Figure 17 is another motion diagram of the fourth embodiment of the elliptical trainer;

[0045] Figure 18 is a structural schematic diagram of the fifth embodiment of the elliptical trainer;

[0046] Figure 19 is a schematic diagram of the fifth embodiment of the elliptical trainer from another angle;

[0047] Figure 20 is another angled schematic diagram of the fifth embodiment of the elliptical trainer;

[0048] Figure 21 is a structural schematic diagram of the third embodiment of the elliptical fitness device of this application;

[0049] Figure 22 is a schematic diagram of the movement of the sixth embodiment of the elliptical trainer;

[0050] Figure 23 is another motion diagram of the sixth embodiment of the elliptical trainer;

[0051] Figure 24 is a structural schematic diagram of the seventh embodiment of the elliptical fitness device of this application;

[0052] Figure 25 is a schematic diagram of the seventh embodiment of the elliptical trainer;

[0053] Figure 26 is another motion diagram of the seventh embodiment of the elliptical trainer;

[0054] Figure 27 shows a structural schematic diagram of the eighth embodiment of the elliptical trainer of this application;

[0055] Figure 28 is a structural schematic diagram of the elliptical trainer in Figure 27 from another perspective;

[0056] Figure 29 shows a structural schematic diagram of the ninth embodiment of the elliptical trainer of this application;

[0057] Figure 30 is a front view of the elliptical exercise machine in Figure 29;

[0058] Figure 31 is a schematic diagram of the assembly of the crank-rocker mechanism and the foot pedal mechanism of the elliptical exercise machine in Figure 29.

[0059] Figure 32 is an exploded view of the structure in Figure 31;

[0060] Figure 33 is a structural schematic diagram of the tenth embodiment of the elliptical fitness device of this application.

[0061] Figure 34 shows a structural schematic diagram of the eleventh embodiment of the elliptical fitness device of this application;

[0062] Figure 35 is a magnified view of a portion of point A in Figure 34;

[0063] Figure 36 is a structural schematic diagram of the twelfth embodiment of the elliptical fitness device of this application;

[0064] Figure 37 is a magnified view of part B in Figure 36;

[0065] Figure 38 is an exploded view of the damping mechanism of the twelfth embodiment;

[0066] Figure 39 shows a structural schematic diagram of the thirteenth embodiment of the elliptical trainer of this application;

[0067] Figure 40 is a structural schematic diagram of the elliptical trainer in Figure 39 from another angle;

[0068] Figure 41 is a structural schematic diagram of the thirteenth embodiment of the elliptical trainer of this application in the storage position;

[0069] Figure 42 is a structural schematic diagram of the fourteenth embodiment of the elliptical fitness device of this application;

[0070] Figure 43 is a structural schematic diagram of the elliptical trainer in Figure 42 from another angle;

[0071] Figure 44 is a structural schematic diagram of the fourteenth embodiment of the elliptical trainer of this application in the storage position;

[0072] Figure 45 is a front view of the fifteenth embodiment of the elliptical trainer of this application;

[0073] Figure 46 is a left view of the fifteenth embodiment of the elliptical trainer.

[0074] Figure 47 is a top view of the fifteenth embodiment of the elliptical trainer.

[0075] Figure 48 is a first perspective view of the fifteenth embodiment of the elliptical trainer.

[0076] Figure 49 is a second perspective view of the fifteenth embodiment of the elliptical trainer.

[0077] Figure 50 is a third-angle perspective view of the fifteenth embodiment of the elliptical fitness device.

[0078] Figure 51 is a fourth perspective view of the fifteenth embodiment of the elliptical trainer.

[0079] Figure 52 shows the folded state (first angle) of the fifteenth embodiment of the elliptical trainer.

[0080] Figure 53 shows the folded state (second angle) of the fifteenth embodiment of the elliptical trainer.

[0081] Figure 54 shows the folded state (third angle) of the fifteenth embodiment of the elliptical trainer.

[0082] Explanation of the symbols in the first group of illustrations:

[0083] Explanation of the icon numbers in the second group:

[0084] Explanation of the icon numbers in the third group:

[0085] Explanation of the icon numbers in the fourth group:

[0086] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0087] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0088] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0089] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B.

[0090] It should be noted that "reduction" in all embodiments of this document refers to reducing the magnitude of the angle change. "Amplitude" in all embodiments of this document refers to the magnitude of the swing angle.

[0091] This application proposes an elliptical trainer.

[0092] As shown in FIG5, the embodiment of this application includes a frame 100, a crank-rocker assembly 200, and a step assembly 300; the crank-rocker assembly 200 includes a rocker element 210, a crank element 220, and a connecting rod 230. The upper ends of the rocker element 210 and the crank element 220 are rotatably connected to the frame 100, the front end of the connecting rod 230 is rotatably connected to the rocker element 210, and the rear end of the connecting rod 230 is rotatably connected to the crank element 220.

[0093] The elliptical trainer also includes a handrail 500 and a damping mechanism 600. The damping mechanism 600 has a connection point that can move up and down. The handrail 500 is connected to the rocker arm 210 through the damping mechanism 600. The rocker arm 210 pushes the connection point of the damping mechanism 600 to move up and down, so that the swing amplitude of the handrail 500 is smaller than the swing amplitude of the rocker arm 210.

[0094] In this embodiment, the frame 100 provides mounting and support for structures such as the crank-rocker assembly 200 and the pedal assembly 300. The overall frame of the frame 100 can be varied and designed according to actual needs. For example, the frame 100 can be designed in a form similar to a bicycle frame or a scooter frame. No specific limitations are made on the shape and structure of the frame 100. It is understood that both the crank-rocker assembly 200 and the pedal assembly have two sets, corresponding to the left and right feet of the user, respectively.

[0095] It should be noted that the rocker component 210, crank component 220, and connecting rod 230, together with the frame 100, form a crank-rocker mechanism. The crank component 220 is defined as a mechanism capable of full rotation within the crank-rocker mechanism. The rocker component 210 is defined as a mechanism capable of only rocking with a certain amplitude and not full rotation. The rocker component 210 and crank component 220 can be rod-shaped or disc-shaped. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical trainer, the rocker component 210, crank component 220, and connecting rod 230 can optionally all be rod-shaped. For ease of understanding, the following description will exemplify the rocker component 210, crank component 220, and connecting rod 230 as rod-shaped structures.

[0096] The connecting rod 230 can be a straight rod, an arc-shaped rod with a concave center, or a bent rod with an upward-bending front end; no specific limitation is made here. The length and width of the connecting rod 230 can also be selected and designed according to actual needs. The rear part of the connecting rod 230 is rotatably connected to the crank 220, so one end of the crank 220 can be hinged to the rear end of the connecting rod 230 or to the middle position of the connecting rod 230. Optionally, one end of the crank 220 is hinged to the connecting rod 230 near its middle position, so that the connecting rod 230 has connecting sections 233 and extension sections on both sides of the hinge point between the crank 220 and the connecting rod 230, and the foot pedal 330 can slide back and forth between the connecting sections 233 and the extension sections. Thus, the foot pedal 330 slides back and forth on both sides of the hinge between the crank component 220 and the connecting rod 230. Compared to the foot pedal 330 only sliding back and forth on the connecting rod 230 between the rocker component 210 and the crank component 220, moving the crank component 220 forward while achieving the same amplitude makes the structure of the entire elliptical trainer more compact. Under the premise of occupying the same space (front and back direction), the extension section increases the back and forth sliding path of the step assembly 300, thereby increasing the stride of the entire elliptical trainer.

[0097] The foot pedal 330 provides stable support for the user's feet. When the user presses the foot pedal 330, the foot pedal 330 can transmit power through the linkage rod 320 and the connector 310 to convert the action into the power for the crank rocker assembly 200 to move. The foot pedal 330 may consist only of a pedal, or it may include a pedal, a front baffle, a rear baffle, a side baffle, etc. The specific structure of the foot pedal 330 is not limited here.

[0098] The foot pedal 330 is reciprocally slidably connected to the connecting rod 230. The foot pedal 330 and the connecting rod 230 can be slidably connected via a roller assembly or a linear guide rail. In this embodiment, the sliding connection method between the foot pedal 330 and the connecting rod 230 is not specifically limited. The connector 310 provides a transition for the connection between the foot pedal 330 and the linkage rod 320, making the connection between the linkage rod 320 and the foot pedal 330 more convenient and reliable. Depending on the sliding method of the foot pedal 330 and the connecting rod 230, the form of the connector 310 can also be adapted. For example, when the connector 310 does not need to provide installation and support for the roller, it can be set in a rod shape; when the connector 310 needs to provide installation and support for the roller, it can be set in a bracket shape. The shape and structure of the connector 310 are not specifically limited here. The connector 310 and the foot pedal 330 can be integrally formed or separately formed and then fixedly connected by welding, screws, etc.

[0099] By including handrails 500 in the elliptical trainer and linking them with the rocker arm 210, the user's arms can move synchronously through the handrails 500 while their legs are exercising, achieving a full-body workout and improving the user's exercise effect. The handrails 500 can be detachably connected to the rocker arm 210 via plugging, screw fixing, or other methods. The handrails 500 can also be rotatably connected to the rocker arm 210 to allow for folding and upright operation.

[0100] There are many embodiments of the damping mechanism 600. For example, the damping mechanism 600 can be various linkage 230 mechanisms, in which case the vertically movable connection point is the hinge point between the linkages 230. The damping mechanism 600 can also be a pin and oblong hole structure that cooperates between the handrail 500 and the rocker member 210, in which case the connection point is located on the vertically movable pin or oblong hole. The damping mechanism 600 can also be a gear structure or a pulley structure, in which case the connection point is a point on the teeth of the gear structure or a point on the belt. By setting the amplitude reduction mechanism 600, the handrail 500 is not directly connected to the rocker 210. The rocker 210 first pushes the connection point on the amplitude reduction mechanism 600 to move up or down, and then drives the handrail 500 to swing. In this way, the amplitude reduction mechanism 600 can make the swing amplitude of the handrail 500 smaller than that of the rocker 210. Thus, the elliptical trainer can achieve a large stride while effectively reducing the swing amplitude of the handrail 500, thereby improving user comfort.

[0101] In one embodiment, the step assembly 300 includes a connector 310, a linkage rod 320, and a foot pedal 330 located above the linkage rod 230. The foot pedal 330 and the linkage rod 230 are slidably connected back and forth. The connector 310 is fixedly connected to the foot pedal 330. One end of the linkage rod 320 is rotatably connected to the connector 310, and the other end of the linkage rod 320 is rotatably connected to the lower end of the rocker member 210 or the crank member 220. The connection point between the rocker member 210 and the frame 100 is lower than or flush with the highest point of the foot pedal 330 during movement. The handrail 500 is detachable or foldable relative to the rocker member 210.

[0102] By rotatably connecting one end of the linkage 320 to the connector 310 and the other end to the rocker 210 or crank 220, the foot pedal 330 can slide back and forth on the connecting rod 230 while pushing and pulling the rocker 210 or crank 220. That is, the foot pedal 330, linkage 320 and connecting rod 230 constitute a crank-slider mechanism. Therefore, compared with the method of fixing the foot pedal 330 to the connecting rod 230, the foot pedal 330 of this embodiment has a larger range of forward and backward movement relative to the ground, thereby enabling the large stride movement of the entire elliptical fitness machine.

[0103] By making the connection point 310 between the rocker arm 210 and the frame 100 lower than or level with the highest point of the foot pedal 330 during movement, i.e., lowering (shifting) the height of the connection point between the rocker arm 210 and the base, so that the height of the connection point between the rocker arm 210 and the base to the ground is lower than or level with the height of the highest point of the foot pedal 330 to the ground, the overall height of the elliptical trainer can be minimized, resulting in a smaller packaging size and reduced transportation costs. Furthermore, when the elliptical trainer is equipped with handrails 500, the handrails 500 can be folded or detached at the connection point between the rocker arm 210 and the base, typically enabling small-size packaging. By making the handrails 500 foldably connected to the rocker arm 210, the folding and detachment points of the handrails 500 can be lowered, thereby reducing the storage and packaging size of the elliptical trainer with handrails 500, and further reducing storage and transportation costs.

[0104] This application proposes an elliptical trainer.

[0105] In this embodiment of the application, please refer to Figures 1-3. The elliptical trainer includes a frame 100, a crank rocker assembly 200, and a stepping assembly 300.

[0106] The crank-rocker assembly 200 includes a rocker element 210, a crank element 220, and a connecting rod 230. The upper ends of the rocker element 210 and the crank element 220 are rotatably connected to the frame 100. The front end of the connecting rod 230 is rotatably connected to the rocker element 210, and the rear end of the connecting rod 230 is rotatably connected to the crank element 220.

[0107] The step assembly 300 includes a connector 310, a linkage rod 320, and a foot pedal 330 located above the connecting rod 230. The foot pedal 330 and the connecting rod 230 can slide back and forth. The connector 310 is fixedly connected to the foot pedal 330. One end of the linkage rod 320 is rotatably connected to the connector 310, and the other end of the linkage rod 320 is rotatably connected to the lower end of the rocker 210 or the crank 220. The connection point between the rocker 210 and the frame 100 is lower than or flush with the highest point of the foot pedal 330 during movement.

[0108] In this embodiment, the frame 100 provides mounting and support for structures such as the crank-rocker assembly 200 and the pedal assembly 300. The overall frame of the frame 100 can be varied and designed according to actual needs. For example, the frame 100 can be designed in a form similar to a bicycle frame or a scooter frame. No specific limitations are made on the shape and structure of the frame 100. It is understood that both the crank-rocker assembly 200 and the pedal assembly have two sets, corresponding to the left and right feet of the user, respectively.

[0109] It should be noted that the rocker component 210, crank component 220, and connecting rod 230, together with the frame 100, form a crank-rocker mechanism. The crank component 220 is defined as a mechanism capable of full rotation within the crank-rocker mechanism. The rocker component 210 is defined as a mechanism capable of only rocking with a certain amplitude and not full rotation. The rocker component 210 and crank component 220 can be rod-shaped or disc-shaped. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical trainer, the rocker component 210, crank component 220, and connecting rod 230 can optionally all be rod-shaped. For ease of understanding, the following description will exemplify the rocker component 210, crank component 220, and connecting rod 230 as rod-shaped structures.

[0110] The connecting rod 230 can be a straight rod, an arc-shaped rod with a concave center, or a bent rod with an upward-bending front end; no specific limitation is made here. The length and width of the connecting rod 230 can also be selected and designed according to actual needs. The rear part of the connecting rod 230 is rotatably connected to the crank 220, so one end of the crank 220 can be hinged to the rear end of the connecting rod 230 or to the middle position of the connecting rod 230. Optionally, one end of the crank 220 is hinged to the connecting rod 230 near its middle position, so that the connecting rod 230 has connecting sections 233 and extension sections on both sides of the hinge point between the crank 220 and the connecting rod 230, and the foot pedal 330 can slide back and forth between the connecting sections 233 and the extension sections. Thus, the foot pedal 330 slides back and forth on both sides of the hinge between the crank component 220 and the connecting rod 230. Compared to the foot pedal 330 only sliding back and forth on the connecting rod 230 between the rocker component 210 and the crank component 220, moving the crank component 220 forward while achieving the same amplitude makes the structure of the entire elliptical trainer more compact. Under the premise of occupying the same space (front and back direction), the extension section increases the back and forth sliding path of the step assembly 300, thereby increasing the stride of the entire elliptical trainer.

[0111] The foot pedal 330 provides stable support for the user's feet. When the user presses the foot pedal 330, the foot pedal 330 can transmit power through the linkage rod 320 and the connector 310 to convert the action into the power for the crank rocker assembly 200 to move. The foot pedal 330 may consist only of a pedal, or it may include a pedal, a front baffle, a rear baffle, a side baffle, etc. The specific structure of the foot pedal 330 is not limited here.

[0112] The foot pedal 330 is reciprocally slidably connected to the connecting rod 230. The foot pedal 330 and the connecting rod 230 can be slidably connected via a roller assembly or a linear guide rail. In this embodiment, the sliding connection method between the foot pedal 330 and the connecting rod 230 is not specifically limited. The connector 310 provides a transition for the connection between the foot pedal 330 and the linkage rod 320, making the connection between the linkage rod 320 and the foot pedal 330 more convenient and reliable. Depending on the sliding method of the foot pedal 330 and the connecting rod 230, the form of the connector 310 can also be adapted. For example, when the connector 310 does not need to provide installation and support for the roller, it can be set in a rod shape; when the connector 310 needs to provide installation and support for the roller, it can be set in a bracket shape. The shape and structure of the connector 310 are not specifically limited here. The connector 310 and the foot pedal 330 can be integrally formed or separately formed and then fixedly connected by welding, screws, etc.

[0113] By rotatably connecting one end of the linkage 320 to the connector 310 and the other end to the rocker 210 or crank 220, the foot pedal 330 can slide back and forth on the connecting rod 230 while pushing and pulling the rocker 210 or crank 220. That is, the foot pedal 330, linkage 320 and connecting rod 230 constitute a crank-slider mechanism. Therefore, compared with the method of fixing the foot pedal 330 to the connecting rod 230, the foot pedal 330 of this embodiment has a larger range of forward and backward movement relative to the ground, thereby enabling the large stride movement of the entire elliptical fitness machine.

[0114] It should be noted that if the elliptical trainer does not have handrails 500, the height of the base depends on the height of the connection point between the rocker arm 210 and the base. By making the connection point 310 between the rocker arm 210 and the frame 100 lower than or level with the highest point of the foot pedal 330 during exercise, that is, by lowering (moving down) the height of the connection point between the rocker arm 210 and the base, the height of the connection point from the rocker arm 210 to the ground is lower than or level with the height of the highest point of the foot pedal 330 from the ground, thus minimizing the overall height of the elliptical trainer. This results in a smaller packaging size and reduced transportation costs. Furthermore, when the elliptical trainer has handrails 500, the handrails 500 can be folded or detached at the connection point between the rocker arm 210 and the base, typically enabling smaller packaging.

[0115] This elliptical trainer allows the foot pedal 330 to be rotatably connected to the rocker arm 210 or crank arm 220 via a linkage 320, and the foot pedal 330 can slide back and forth relative to the linkage 230. Compared to a fixed connection between the foot pedal 330 and the linkage 230, a longer crank arm 220 is not required to achieve a large stride of the foot pedal 330, resulting in a more compact overall structure and smaller footprint. Furthermore, by making the connection point between the rocker arm 210 and the frame 100 lower than or level with the highest point of the foot pedal 330 during movement, the height of the connection point between the rocker arm 210 and the base is lowered (moved down) when the elliptical trainer does not have a handrail 500. This minimizes the overall height of the elliptical trainer, resulting in a smaller packaging size and reduced transportation costs.

[0116] In one embodiment, as shown in Figures 3-5, the step assembly 300 further includes an upper roller 340 and a lower roller 350 located below and at the front end of the foot pedal 330. Both the upper roller 340 and the lower roller 350 are rotatably connected to the connector 310 and are arranged on the upper and lower sides of the connecting rod 230, so that the foot pedal 330 is slidably connected to the connecting rod 230 back and forth through the upper roller 340 and the lower roller 350.

[0117] In this embodiment, the upper roller 340 and the lower roller 350 extend along the width direction of the connecting rod 230 to clamp the upper and lower sides of the connecting rod 230, respectively. By providing the upper roller 340 and the lower roller 350 at the front end of the foot pedal 330, and by clamping the upper and lower sides of the connecting rod 230, the foot pedal 330 can be stably supported. Even if the rear end of the foot pedal 330 is suspended in the air, the rear end of the foot pedal 330 will not sag to fit against the connecting rod 230 when the user steps on it. Therefore, by providing the upper and lower rollers 350 only at the front end of the foot pedal 330, reliable sliding between the foot pedal 330 and the connecting rod 230 is achieved while minimizing the number of rollers, thereby reducing the overall manufacturing cost. Furthermore, a set of upper and lower rollers 350 can also be provided at the rear end below the foot pedal 330 to improve sliding smoothness and support stability.

[0118] In another embodiment, referring to Figures 1 and 2, the pedal assembly further includes a front roller 360 and a rear roller 370 located below the foot pedal. The front roller 360 and the rear roller 370 are arranged on the upper side of the connecting rod 230 in the front-rear direction and are rotatably connected to the connector 310, so that the foot pedal 330 is slidably connected to the connecting rod 230 in the front-rear direction through the front roller 360 and the rear roller 370.

[0119] In this embodiment, both the front roller 360 and the rear roller 370 extend along the width direction of the connecting rod 230. By arranging the front roller 360 and rear roller 370 above the connecting rod 230 along the front-rear direction of the foot pedal 330, the front roller 360 and rear roller 370 can reliably support the front and rear ends of the foot pedal 330. This achieves reliable sliding between the foot pedal 330 and the connecting rod 230 while minimizing the number of rollers, thereby reducing the overall manufacturing cost. Furthermore, a set of front and rear rollers 370 can also be provided below the connecting rod 230 to improve sliding smoothness and support stability.

[0120] In another embodiment, referring to FIG14, the mating structure 240 includes a mounting arm 242 extending in the front and rear directions. The mounting arm 242 and the connecting rod 230 enclose a sliding space 243 extending in the front and rear directions. The pedal assembly also includes an upper roller 340 and a lower roller 350 located below and at the front end of the foot pedal. The upper roller 340 and the lower roller 350 are rotatably connected to the connector 310 and are clamped on the upper and lower sides of the mounting arm 242. The lower roller 350 is slidably mounted in the sliding space 243.

[0121] In this embodiment, the upper roller 340 and the lower roller 350 extend along the width direction of the mounting arm 242 to clamp the upper and lower sides of the mounting arm 242, respectively. The upper roller 340 and the lower roller 350 are provided at the front end of the foot pedal 330, so that the upper roller 340 and the lower roller 350 clamp the upper and lower sides of the mounting arm 242, providing stable support for the foot pedal 330. Even if the rear end of the foot pedal 330 is suspended in the air, the rear end of the foot pedal 330 will not sag to fit against the mounting arm 242 when the user steps on it. Therefore, by providing the upper and lower rollers 350 only at the front end of the foot pedal 330, reliable sliding between the foot pedal 330 and the mounting arm 242 is achieved while minimizing the number of rollers, thereby reducing the overall manufacturing cost. Furthermore, a set of upper and lower rollers 350 can also be provided at the rear end below the foot pedal 330 to improve sliding smoothness and support stability.

[0122] The mounting arm 242 and the connecting rod 230 can be integrally formed or fixedly connected by bonding, welding, or other methods. By setting the mounting arm 242, a sliding space 243 is formed between the mounting arm 242 and the top wall of the connecting rod 230. The lower roller 350 can be slidably installed in the sliding space 243. The upper roller 340 and the lower roller 350 are set with the mounting arm 242 sandwiched between them. Thus, the upper roller 340 and the lower roller 350 are both located above the connecting rod 230. This avoids the foot pedal 330 from sliding too far back and forth and also avoids the connection point between the crank 220 and the connecting rod 230 from interfering with the movement of the lower roller 350. This allows full use of the part of the connecting rod 230 located behind the crank 220 for the foot pedal 330 to slide, ensuring a large stride while making the overall structure more compact.

[0123] In one embodiment, as shown in Figures 6 to 14, the bottom wall of the foot pedal 330 is provided with a sliding mechanism 380, and the connecting rod 230 is provided with a mating structure 240 located above the connection point between the connecting rod 230 and the crank member 220. The sliding structure is slidably connected to the mating structure 240 along the front and back.

[0124] In this embodiment, the mating structure 240 is positioned above the connection point between the connecting rod 230 and the crank member 220. Thus, when the sliding mechanism 380 slides relative to the mating structure 240, it is not restricted by the connection point between the connecting rod 230 and the crank member 220. This allows full utilization of the portion of the connecting rod 230 located behind the crank member 220 for the foot pedal 330 to slide, ensuring a large stride while making the overall structure more compact. The specific structures of the sliding mechanism 380 and the mating structure 240 can be varied, such as linear guide pairs, grooves 241, and roller-loaded guide rails. No specific limitation is made here. By enabling the foot pedal 330 and the connecting rod 230 to slide back and forth through the sliding mechanism 380 and the mating structure 240, the forward and backward sliding accuracy of the foot pedal 330 can be improved, preventing the foot pedal 330 from wobbling left and right or up and down when sliding back and forth on the connecting rod 230.

[0125] In one embodiment, referring to Figure 6, the sliding mechanism 380 and the mating structure 240 are linear guide pairs. This allows one of the sliding mechanism 380 and the mating structure 240 to be a slide rail, and the other to be a slider. By making the sliding mechanism 380 and the mating structure 240 a linear guide pair, that is, the foot pedal 330 and the connecting rod 230 achieve forward and backward sliding engagement through the linear guide pair, the sliding accuracy of the foot pedal 330 is higher, the space occupied is smaller, and the foot pedal 330 can still achieve stable linear motion under high load. There are many types of linear guide pairs, such as roller linear guides, ball linear guides, cylindrical linear guides, etc., which can be selected according to actual needs, and are not specifically limited here.

[0126] In another embodiment, as shown in Figures 7 to 13, the mating structure 240 includes a groove 241 formed in the connecting rod 230 and extending in the front-rear direction. The sliding mechanism 380 includes a mounting wall 381 connected to the bottom wall of the foot pedal 330 and a rolling element 382 rotatably connected to the mounting wall 381. The rolling element 382 is adapted to be installed in the groove 241 and can roll back and forth within the groove 241. The rolling element 382 can be a roller, ball bearing, etc. By forming a groove 241 on the connecting rod 230 and providing a rolling element 382 adapted to the groove 241 on the foot pedal 330, the front-rear sliding of the foot pedal 330 and the connecting rod 230 can be achieved. This structure is simple, reliable, and has low manufacturing cost. The groove 241 can be formed in the top wall, side wall, or other positions of the connecting rod 230.

[0127] Furthermore, referring to Figures 11 to 13, a groove 241 is formed on both the inner and outer side walls of the connecting rod 230. The rolling element 382 is then mounted on the inner side of the mounting wall 381. In this way, the mounting wall 381 provides support for the rolling element 382 while also shielding the rolling element 382 and part of the groove 241, reducing the entry of foreign objects into the rolling element 382, ​​and ensuring overall aesthetic consistency.

[0128] Furthermore, as shown in Figures 7 to 10, the top wall of the connecting rod 230 is provided with a receiving groove 231, and both the inner and outer walls of the receiving groove 231 are provided with a sliding groove 241. The rolling element 382 is mounted on the outer side of the mounting wall 381, which extends into the receiving groove 231 so that the rolling element 382 can slide within the sliding groove 241. In this way, the rolling element 382 can be hidden, thereby improving the service life of the mating structure 240 and the sliding mechanism 380.

[0129] In one embodiment, as shown in Figures 1 to 8 and 11, the connector 310 is located on one side of the connecting rod 230, or, as shown in Figures 10 and 11, the connector 310 passes through the connecting rod 230 and connects to the bottom wall of the foot pedal 330. Since the linkage rod 320 is connected to the connector 310, when the connector 310 is located on one side of the connecting rod 230, the linkage rod 320 is also located on one side of the connecting rod 230. Thus, there is no need to make a through hole in the connecting rod 230, which simplifies the overall manufacturing process. When the connector 310 passes through the connecting rod 230, the connecting rod 230 can provide a certain guiding effect for the sliding of the foot pedal 330, making the forward and backward sliding of the foot pedal 330 more reliable.

[0130] In one embodiment, as shown in Figures 1-7, the connecting rod 230 includes a support section 232 and a connecting section 233 connected to the front end of the support section 232. The support section 232 extends in the front-back direction, and the connecting section 233 is inclined upward relative to the support section 232. The foot pedal 330 is slidably connected to the support section 232, and the connecting section 233 is rotatably connected to the rocker 210.

[0131] In this embodiment, by extending the support section 232 in the front-to-back direction, the foot pedal 330 can be positioned in a relatively horizontal position when the rocker arm 210 is vertical. Furthermore, by tilting the connecting section 233 upwards relative to the support section 232, the foot pedal 330 is positioned at a lower position while the connecting rod 230 can connect to the higher point of the rocker arm 210. This provides sufficient space below the rocker arm to connect the front end of the linkage rod 320.

[0132] In one embodiment, referring to Figures 1-4, the elliptical trainer further includes an adapter assembly 400. The adapter assembly 400 includes a fixed shaft 410, a mounting cylinder 420, and a bearing 430 disposed within the mounting cylinder 420. The outer peripheral wall of the mounting cylinder 420 is fixedly connected to the rear end of the connecting rod 230 or the bottom wall near the rear end. One end of the fixed shaft 410 is fixedly connected to the crank component 220, and the other end extends into the mounting cylinder 420 and is fixedly connected to the inner ring of the bearing 430. The outer ring of the bearing 430 is fixedly connected to the inner peripheral wall of the mounting cylinder 420.

[0133] In this embodiment, the mounting sleeve 420 is connected to the bottom wall of the connecting rod 230 to prevent the top surface of the connecting rod 230 from protruding and causing the foot pedal 330 to rise. The crank component 220 is rotatably connected to the bottom surface of the connecting rod 230 rather than the side wall via the adapter assembly 400, which can improve the service life of the adapter assembly 400 and prevent it from breaking due to excessive stress over a long period of time. The bearing 430 can specifically be a rolling bearing 430, which includes an outer ring, an inner ring, and a roller disposed between the outer ring and the inner ring. The roller can be a cylinder, a ball, etc., and is not specifically limited here. By making the adapter assembly 400 consist of a fixed shaft 410, a mounting sleeve 420, and a bearing 430, the rotation of the connecting rod 230 relative to the rocker component 210 is realized through the inner and outer rings of the bearing 430, which can effectively reduce the wear of the fixed shaft 410 and the mounting sleeve 420, thereby improving the service life of the entire adapter assembly 400.

[0134] In one embodiment, as shown in FIG5, the elliptical trainer further includes a handrail 500 and a damping mechanism 600. The damping mechanism 600 has a connection point that can move up and down. The handrail 500 is connected to the rocker arm 210 through the damping mechanism 600. The handrail 500 is detachable or foldable relative to the rocker arm 210. The rocker arm 210 pushes the connection point of the damping mechanism 600 to move up and down, so that the swing amplitude of the handrail 500 is smaller than the swing amplitude of the rocker arm 210.

[0135] In this embodiment, by including handrails 500 in the elliptical trainer and linking them with the rocker arm 210, the user's arms can move synchronously through the handrails 500 while the legs are exercising, achieving a full-body workout and improving the user's exercise effect. The handrails 500 can be detachably connected to the rocker arm 210 via plugging, screw fixing, or other methods. The handrails 500 can also be rotatably connected to the rocker arm 210 to allow for folding and upright operation. By making the handrails 500 foldably connected to the rocker arm 210, the folding and detachment points of the handrails 500 can be lowered, thereby reducing the storage and packaging size of the elliptical trainer with handrails 500, and consequently reducing storage and transportation costs.

[0136] There are many embodiments of the damping mechanism 600. For example, the damping mechanism 600 can be various linkage 230 mechanisms, in which case the vertically movable connection point is the hinge point between the linkages 230. The damping mechanism 600 can also be a pin and oblong hole structure that cooperates between the handrail 500 and the rocker member 210, in which case the connection point is located on the vertically movable pin or oblong hole. The damping mechanism 600 can also be a gear structure or a pulley structure, in which case the connection point is a point on the teeth of the gear structure or a point on the belt. By setting the amplitude reduction mechanism 600, the handrail 500 is not directly connected to the rocker 210. The rocker 210 first pushes the connection point on the amplitude reduction mechanism 600 to move up or down, and then drives the handrail 500 to swing. In this way, the amplitude reduction mechanism 600 can make the swing amplitude of the handrail 500 smaller than that of the rocker 210. Thus, the elliptical trainer can achieve a large stride while effectively reducing the swing amplitude of the handrail 500, thereby improving user comfort.

[0137] This application proposes an elliptical trainer 1000.

[0138] In this embodiment, referring to Figures 15 to 23, the elliptical exercise machine 1000 includes a frame 10, a handrail 20, a crank component 31, a rocker arm assembly 30, and a damping connecting rod 40. The handrail 20 is rotatably connected to the frame 10 at a first hinge point 51. The crank component 31 and rocker arm assembly 30 are rotatably connected to the frame 10, and the crank component 31 and rocker arm assembly 30 include a crank component 31, a rocker component 32, and a connecting rod 33. The rocker component 32 is rotatably connected to the frame 10 at a second hinge point 52. The two ends of the connecting rod 33 are rotatably connected to the crank component 31 and the rocker component 32, respectively. The foot pedal module 60 is connected to the connecting rod 33 and is also connected to the rocker component 32 or the crank component 31 via a transmission connection. The damping connecting rod... One end of 40 is rotatably connected to the handrail 20 at the third hinge point 53, and the other end is rotatably connected to the rocker 32 at the fourth hinge point 54. The first hinge point 51, the second hinge point 52, the third hinge point 53, and the fourth hinge point 54 are all spaced apart. On the handrail 20, the portion between the first hinge point 51 and the third hinge point 53 is the first swing segment 21. On the rocker 32, the portion from the second hinge point 52 to the fourth hinge point 54 is the second swing segment 322. The first swing segment 21 and the second swing segment 322 swing in the same direction, and the length of the first swing segment 21 is greater than the length of the second swing segment 322, so that the swing amplitude of the handrail 20 is less than the swing amplitude of the rocker 32.

[0139] In this embodiment, the frame 10 is the main frame of the elliptical exercise machine 1000, used to support and fix various components, such as the handrails 20, crank components 31, rocker arm components 30, foot pedal components, flywheel, etc. The frame 10 can be made of metal materials, such as steel or aluminum alloy, to give it sufficient strength and stability. The shape of the frame 10 can be I-shaped or other shapes, which are not limited here.

[0140] The armrest 20 is used by the user to hold during exercise, serving to support the user and facilitate arm movement. The armrest 20 can be made of plastic, rubber, or metal. The armrest 20 may include a first swing segment 21 and a handle 22 connected to each other. The first swing segment 21 is the part from the first hinge point 51 to the third hinge point 53, used to hinge with the amplitude reducing link 40 and control the swing amplitude of the armrest 20. The handle 22 is connected to the first swing segment 21 at the first hinge point 51 and is used for the user's hand to hold. The first swing segment 21 and the handle 22 can be arranged in a straight line or at an angle, which is not limited here.

[0141] The crank assembly 31 and rocker arm assembly 30 include a rocker arm 32, a crank assembly 31, and a connecting rod 33. The rocker arm 32 can be a rod-shaped structure or a disc-shaped structure, as long as it can be rotatably connected to the base. To reduce weight, simplify the structure, and reduce the space occupied by the elliptical exercise machine 1000, the rocker arm 32 adopts a rod-shaped structure. For ease of understanding, the following description uses the rocker arm 32 as a rod-shaped structure as an example. One end of the rocker arm 32 is hinged to the base at the second hinge point 52 to achieve rotatable connection between the rocker arm 32 and the frame 10. The rocker arm 32 may include a second swing segment 322 and a connecting segment 323 connected to each other. The second swing segment 322 is the part from the second hinge point 52 to the third hinge point 53, used to hinge with the amplitude-reducing connecting rod 40 and control the swing amplitude of the armrest 20; the connecting segment 323 is used to hinge with the connecting rod 33. The second swing segment 322 and the connecting segment 323 can be arranged in a straight line or at an angle, which is not limited here.

[0142] The damping link 40 is used to drive the connection between the armrest 20 and the crank assembly 31 rocker arm assembly 30, transmitting power from the crank assembly 31 rocker arm assembly 30 to the armrest 20. The damping link 40 can be a rod-shaped structure, and its shape and length are not limited here, as long as it can be rotatably connected to the armrest 20 and the rocker arm 32.

[0143] The foot pedal module 60 provides stable support for the user's feet. When the user steps on the foot pedal module 60, it transmits power, converting the action into the power for the crank component 31 and rocker assembly 30 to move. The foot pedal module 60 is reciprocally slidably connected to the connecting rod 33. Specifically, the foot pedal module 60 includes a foot pedal and a roller assembly connected to the foot pedal, so that the foot pedal is slidably connected to the connecting rod 33 through the roller assembly and moves in a circular motion with the crank component 31, thus forming an elliptical motion path. Since the foot pedal is slidably connected to the connecting rod 33, the force of the foot pedal is not applied to the rocker component 32 to make it swing. Therefore, an adjusting rod 34 is required, with its two ends hinged to the rocker component 32 and the foot pedal respectively. The force of the foot pedal is applied to the adjusting rod 34, which pushes the rocker component 32 to swing, thereby pushing the armrest 20 to swing, thus completing the complete motion coordination. In other embodiments, the pedal module 60 may also be fixedly connected to the connecting rod 33, which is hinged to the rocker member 32. The pedal is then driven to the crank member 31 via the connecting rod 33. Specifically, the connecting rod 33 is reciprocally slidably connected to the crank member 31, so that while the connecting rod 33 reciprocates, it also moves in a circular motion with the crank member 31, thereby forming an elliptical motion path, which in turn causes the pedal module 60 to form an elliptical motion path.

[0144] This application uses a damping linkage 40 to rotatably connect the two ends of the armrest 20 to the first swing segment 21 and the second swing segment 322 of the rocker arm 32, respectively. This prevents the armrest 20 and the rocker arm 32 from being directly connected, allowing for flexible adjustment of the movement ratio between them. Furthermore, the first swing segment 21 and the second swing segment 322 swing in the same direction, while the armrest 20 and the rocker arm 32 swing in opposite directions, preventing the user from using the same hand and foot simultaneously.

[0145] Secondly, the swing amplitude of the armrest 20 is reduced by setting the length of the first swing segment 21 to be greater than the length of the second swing segment 322. In this process, the damping link 40 acts like a lever, connecting the armrest 20 and the rocker arm 32. The difference in length between the first swing segment 21 and the second swing segment 322 determines the swing amplitude of the armrest 20. That is, this application reduces the swing amplitude of the armrest 20 through the lever principle. When a force is applied to a point, the effect of the force is proportional to the length of the lever arm. Simply put, the longer the lever arm, the smaller the rotation amplitude; conversely, the shorter the lever arm, the larger the rotation amplitude. Therefore, in this application's elliptical exercise machine 1000, the length of the first swing segment 21 is greater than the length of the second swing segment 322, so that the swing amplitude of the armrest 20 is smaller than the swing amplitude of the rocker arm 32.

[0146] In one embodiment, the length ratio of the first swing segment 21 to the second swing segment 322 is greater than or equal to 1.5 and less than or equal to 3.5.

[0147] In this embodiment, the length of the first swing segment 21 is 2 to 3 times the length of the second swing segment 322, specifically 1.5, 2, 2.2, 2.4, 2.5, 2.6, 2.8, 3, or 3.5. Within this length ratio range, the swing amplitude of the armrest 20 can be reduced, and the swing range of the armrest 20 is within the user's comfortable swing range. If the length ratio of the first swing segment 21 to the second swing segment 322 is too large, i.e., the length of the first swing segment 21 is much greater than the length of the second swing segment 322, the swing amplitude of the armrest 20 will be too small, failing to effectively coordinate with the user's arm movements, thus reducing the user's exercise experience. If the length ratio of the first swing segment 21 to the second swing segment 322 is too small, i.e., the length difference between the first swing segment 21 and the second swing segment 322 is small, the swing amplitude of the armrest 20 will approach the swing amplitude of the rocker element 32, resulting in a larger range of arm swing for the user, further reducing the user's exercise experience.

[0148] Referring to Figures 15 to 17, in the fourth embodiment, on the armrest 20, the third hinge point 53 is located above the first hinge point 51 and the foot pedal module 60; on the rocker 32, the fourth hinge point 54 is located above the second hinge point 52 and the foot pedal module 60.

[0149] In this embodiment, the first hinge point 51 can be located in front of or behind the second hinge point 52, without limitation. The first hinge point 51 is located above the pedal module 60, and the third hinge point 53 is located above the first hinge point 51 to prevent interference between the third hinge point 53 and the pedal module 60, thus preventing the user's foot from hitting the third hinge point 53. Since the swing directions of the first swing segment 21 and the second swing segment 322 need to be the same so that the swing directions of the armrest 20 and the rocker arm 32 are opposite, the third hinge point 53 and the fourth hinge point 54 need to be located on the same side to ensure that the swing directions of the first swing segment 21 and the second swing segment 322 are the same. Therefore, the second hinge point 52 is located above the pedal module 60, and the fourth hinge point 54 is located above the second hinge point 52.

[0150] Furthermore, the frame 10 has a vertical pole 11 and a connecting part 12. The vertical pole 11 is located on the front side of the frame 10, and the second hinge point 52 is provided on the vertical pole 11. The connecting part 12 is located on the rear side of the vertical pole 11, and the first hinge point 51 is provided on the connecting part 12.

[0151] In this embodiment, the upright 11 is a rod-shaped structure, and the connecting part 12 can be a protrusion. The upright 11 is used to rotatably connect with the rocker 32, and the connecting part 12 is used to rotatably connect with the handrail 20. The connecting part 12 is located on the rear side of the upright 11 so that there are no protruding parts on the front side of the upright 11, so as to prevent the user from hitting the protruding parts and causing injury when passing by the elliptical exercise machine 1000. At the same time, it can reduce the length of the elliptical exercise machine 1000 in the front-back direction, thereby reducing the volume of the elliptical exercise machine 1000.

[0152] Referring to Figures 18 to 20, in the fifth embodiment, on the armrest 20, the third hinge point 53 is located above the first hinge point 51; on the rocker arm 32, the fourth hinge point 54 is located above the second hinge point 52; and the first hinge point 51 is located in front of the second hinge point 52.

[0153] In this embodiment, the third hinge point 53 is located above the first hinge point 51. To ensure that the first swing segment 21 and the second swing segment 322 swing in the same direction, the fourth hinge point 54 and the third hinge point 53 need to be located on the same side. Therefore, the fourth hinge point 54 is also located above the second hinge point 52. In this embodiment, the first hinge point 51 is located in front of the second hinge point 52 to prevent the foot pedal module 60 from interfering with the first hinge point 51 and to prevent the user's leg from hitting the first hinge point 51.

[0154] Referring to Figures 21 to 23, in the sixth embodiment, the third hinge point 53 is located below the first hinge point 51, and the fourth hinge point 54 is located below the second hinge point 52; the frame 10 has a vertical pole 11 and a protrusion 13, the protrusion 13 protrudes from the top of the vertical pole 11 on the side away from the foot pedal module 60, the first hinge point 51 is located on the protrusion 13, and the second hinge point 52 is located on the vertical pole 11.

[0155] In this embodiment, the third hinge point 53 is located below the first hinge point 51. To ensure that the first swing segment 21 and the second swing segment 322 swing in the same direction, the fourth hinge point 54 and the third hinge point 53 need to be located on the same side. Therefore, the fourth hinge point 54 is also located below the second hinge point 52. Compared to the arrangement where the third hinge point 53 and the fourth hinge point 54 are above the first hinge point 51 and the second hinge point 52, this prevents the user's knee from impacting the third hinge point 53. Secondly, to prevent the first hinge point 51 from interfering with the foot pedal assembly, the first hinge point 51 is located in front of the second hinge point 52. Consequently, a protrusion 13 is provided on the front side of the top of the upright 11, and the protrusion 13 is used for rotatable connection with the handrail 20.

[0156] In the first, second, and third embodiments, the first hinge point 51 and the second hinge point 52 are staggered vertically, and the second hinge point 52 is located within the projection range of the first swing segment 21 onto the swing member 32. In other words, the second hinge point 52 is not located beyond the projection range of the first swing segment 21 onto the swing member 32. Thus, the distance between the third hinge point 53 and the fourth hinge point 54 is smaller, allowing for a shorter length of the damping link 40, which is beneficial for achieving a compact structure and saving on the cost of various components. For example, if the second hinge point 52 is located beyond the projection range of the first swing segment 21 onto the swing member 32, i.e., the height difference between the second hinge point 52 and the first hinge point 51 increases, the height difference between the fourth hinge point 54 and the third hinge point 53 also increases, and the distance between the third hinge point 53 and the fourth hinge point 54 increases, resulting in a longer length of the damping link 40, which is not conducive to the compact design of the elliptical exercise machine 1000.

[0157] Referring to Figures 24 to 26, in the seventh embodiment, the frame 10 has a vertical pole 11, with a first hinge point 51 and a second hinge point 52 both located on the vertical pole 11, and the first hinge point 51 located above the second hinge point 52; the armrest 20 also includes a handle 22 for hand gripping, the handle 22 being connected to the first swing segment 21 and set at an angle, and the third hinge point 53 being located at the end of the first swing segment 21 away from the handle 22; the rocker member 32 also includes a connecting segment 323 for hinged connection of the connecting rod 33, the connecting segment 323 being connected to the second swing segment 322 and set at an angle, and the fourth hinge point 54 being located at the end of the second swing segment 322 away from the connecting segment 323; the first swing segment 21 and the second swing segment 322 extend in the same direction.

[0158] In this embodiment, the first hinge point 51 and the second hinge point 52 are both located on the upright 11, which means that the frame 10 does not need to be provided with an additional structure to be rotatably connected to the rocker 32 or the handrail 20, so that the number of parts of the frame 10 is reduced, thereby simplifying the overall structure and making the elliptical exercise machine 1000 more compact and stable.

[0159] Since the upright post 11 is an upright rod-shaped structure, the first hinge point 51 and the second hinge point 52 are located on the same straight line. This means that the movement of the handrail 20 and the rocker arm 32 will be limited by position and angle. Therefore, it is necessary to make corresponding angle adjustments to the first rocker arm 21 and the second rocker arm 322 to ensure that the amplitude-reducing link 40 can transmit the first rocker arm 21 and the second rocker arm 322, so that the swing amplitude of the handle 22 is smaller than the swing amplitude of the connecting segment 323. Preferably, the angle between the first rocker arm 21 and the handle 22 is a right angle, and the angle between the second rocker arm 322 and the connecting segment 323 is a right angle.

[0160] The first swing segment 21 and the second swing segment 322 can extend towards the front of the upright 11 or towards the rear of the upright 11, as long as the two extension directions are the same, to avoid the user using the same hand and foot. No restrictions are imposed here.

[0161] Furthermore, both the first swing segment 21 and the second swing segment 322 extend toward the side of the upright 11 away from the foot pedal module 60, so that the amplitude reduction link 40 is located on the front side of the upright 11.

[0162] In this embodiment, the first swing segment 21 and the second swing segment 322 extend toward the side of the upright 11 away from the pedal module 60, so that the damping link 40 is positioned on the front side of the upright 11. This position prevents the damping link 40 from directly contacting the pedal module 60 or the leg during operation, especially preventing interference with the knee during movement.

[0163] Since the damping link 40 swings during the movement of the handrail 20 and the rocker arm 32, if the damping link 40 is placed in front of the upright 11, its swing path can maintain a certain distance between the foot pedal module 60 and the user's legs and knees, thus avoiding the possibility of the knee colliding with the damping link 40.

[0164] Furthermore, the ratio of the height difference between the first hinge point 51 and the second hinge point 52 to the length of the first swing segment 21 is greater than or equal to 2 and less than or equal to 3.5.

[0165] In this embodiment, the height difference between the first hinge point 51 and the second hinge point 52 refers to the vertical distance between the first hinge point 51 and the second hinge point 52. In the structure of the elliptical exercise machine 1000, the movement of the handrail 20 and the rocker arm 32 is transmitted through the first swing segment 21 and the second swing segment 322 connected by the amplitude reduction link 40. The change in the swing amplitude between the handrail 20 and the rocker arm 32 depends not only on the length of the swing segment but also on the position of the first hinge point 51 and the second hinge point 52. For example, the height difference between the first hinge point 51 and the second hinge point 52 affects the angle difference between the movement paths of the handrail 20 and the rocker arm 32, and this angle difference determines the swing amplitude of the handrail 20. A large height difference means that the angle difference between the movement paths of the two is large, that is, the movement paths of the handrail 20 and the rocker arm 32 are significantly different, which can make the swing amplitude of the handrail 20 smaller than that of the rocker arm 32.

[0166] In this embodiment, the ratio of the height difference between the first hinge point 51 and the second hinge point 52 to the length of the first swing segment 21 can be 2, 2.5, 3, or 3.5. Within this range, the swing amplitude of the armrest 20 can be reduced, and the swing range of the armrest 20 is within the user's comfortable swing range. If the ratio is too small, that is, the distance between the first hinge point 51 and the second hinge point 52 is too close, the movement paths of the armrest 20 and the rocker 32 are relatively close. In this case, the movement of the rocker 32 will directly affect the armrest 20, resulting in a larger swing amplitude of the armrest 20. If the ratio is too large, that is, the distance between the first hinge point 51 and the second hinge point 52 is too far, the swing amplitude of the armrest 20 will be limited, and it will not be able to effectively cooperate with the user's arm movements, thereby reducing the user's exercise experience.

[0167] In one embodiment, the crank component 31 rocker assembly 30 further includes an adjustment rod 34, one end of which is hinged to the rocker component 32, and the other end is fixedly connected to the pedal module 60, so that when the rocker component 32 swings backward to its limit position, a portion of the pedal module 60 extends beyond the connecting rod 33.

[0168] In this embodiment, one end of the adjusting rod 34 is hinged to the rocker member 32, and the other end is fixedly connected to the foot pedal module 60. This allows the adjusting rod 34 to effectively adjust the position of the foot pedal module 60 during movement and ensures that the foot pedal module 60 is connected to the rocker member 32. When the rocker member 32 rotates to its limit position, the foot pedal module 60 will partially extend beyond the connecting rod 33, meaning that the length of the connecting rod 33 can be set to be smaller, allowing the foot pedal module 60 to achieve a larger stride in a compact structure. At this time, the adjusting rod 34 acts as a limiter, preventing the foot pedal module 60 from detaching from the connecting rod 33. In this way, the elliptical trainer 1000 can achieve a larger stride in a compact structure without affecting the movement stability of each component.

[0169] This application proposes an elliptical trainer.

[0170] In this embodiment of the application, please refer to Figures 27 and 28. The elliptical trainer 100a includes a frame 10a, a motion module, and a handrail 30a. The frame 10a includes a vertical pole 11a extending longitudinally; the motion module includes two motion components 21a respectively disposed on both sides of the frame 10a in the left-right direction; the motion component 21a includes a crank-rocker structure and a foot pedal 23a; the crank-rocker structure includes a swing member 221a, a connecting rod 222a and a crank 223a; the swing member 221a is rotatably connected to the vertical pole 11a; the two ends of the connecting rod 222a are rotatably connected to the swing member 221a and the crank 223a respectively, and the crank 223a is rotatably connected to the frame 10a; the foot pedal 23a is connected to the connecting rod 222a and is connected to the swing member 221a or the crank 223a in a transmission connection; the handrail 30a is rotatably connected to the vertical pole 11a, and the lower end of the handrail 30a rotates with the swing member 221a and can slide up and down in cooperation.

[0171] In this embodiment, the frame 10a is the basic frame of the elliptical trainer 100a, providing a supporting structure. The frame 10a can be made of a metal material, such as steel or aluminum alloy, to give it sufficient strength and stability. The shape of the frame 10a can be L-shaped or other shapes, without limitation. The upright 11a extends longitudinally to ensure the stability of the motion components 21a and the handrails 30a, reducing possible swaying or instability of the equipment during exercise.

[0172] The motion module / motion component 21a drives the foot pedal 23a to slide back and forth through a crank-rocker structure, simulating the motion of walking or running.

[0173] Specifically, when the user steps on the pedal 23a to rotate the crank 223a, the crank 223a transmits the circular motion to the oscillating member 221a via the connecting rod 222a. Since the two ends of the connecting rod 222a are rotatably connected to the crank 223a and the oscillating member 221a respectively, the circular motion of the crank 223a causes one end of the connecting rod 222a to move in a circular motion along with the crank 223a, while the other end of the connecting rod 222a pushes the oscillating member 221a to oscillate around its rotational connection point with the upright rod 11a. Simultaneously, the oscillation of the oscillating member 221a, through the connection between the connecting rod 222a and the pedal 23a, causes the pedal 23a to move back and forth. At this time, because the crank 223a is continuously rotating, the position and angle of the connecting rod 222a are also constantly changing. This change, in conjunction with the oscillation of the oscillating member 221a, causes the movement trajectory of the pedal 23a to form an ellipse. In other words, when the crank 223a rotates to a certain position, the connecting rod 222a pushes the oscillating member 221a to swing in one direction, while simultaneously causing the foot pedal 23a to move forward; as the crank 223a continues to rotate, the position of the connecting rod 222a changes, the oscillating member 221a swings in the opposite direction, and the foot pedal 23a moves backward, and so on, to achieve an elliptical motion trajectory.

[0174] The connection between the connecting rod 222a and the foot pedal 23a includes the foot pedal 23a being fixedly connected to the connecting rod 222a and the foot pedal 23a being slidably connected to the connecting rod 222a.

[0175] When the foot pedal 23a is fixedly connected to the connecting rod 222a, one end of the connecting rod 222a is rotatably connected to the swing member 221a, and the other end is slidably or rollably engaged with the crank 223a. The foot pedal 23a will follow the connecting rod 222a in its overall movement. The trajectory of the foot pedal 23a is determined by the movement of the connecting rod 222a, and its position and posture in space are fixed, resulting in a relatively simple and fixed movement pattern. Because the foot pedal 23a and the connecting rod 222a are fixed as one unit, there will be no relative slippage between them during movement. This reduces unstable factors such as wobbling and jamming that may occur due to slippage, making the elliptical fitness machine 100a more stable during operation. Users can feel more stable support during use, reducing safety hazards during exercise.

[0176] When the foot pedal 23a is slidably connected to the connecting rod 222a, the foot pedal 23a not only follows the swing of the connecting rod 222a, but also slides back and forth relative to the connecting rod 222a. Its motion trajectory is no longer solely determined by the connecting rod 222a, but is also influenced by the sliding of the foot pedal 23a on the connecting rod 222a. This makes the motion trajectory of the elliptical trainer 100a more varied, adding an extra dimension to the exercise and providing users with a novel exercise experience. At the same time, the sliding characteristic of the foot pedal 23a better simulates the forward and backward displacement of the feet during natural walking or running, making the user feel more natural and comfortable when using the elliptical trainer 100a, reducing the risk of fatigue and injury caused by unnatural motion trajectories.

[0177] The oscillating element 221a and crank 223a can be either rod-shaped or disc-shaped, as long as they can be rotatably connected to the frame 10a. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical exercise machine 100a, the oscillating element 221a and crank 223a are rod-shaped. For ease of understanding, the following description will exemplify the oscillating element 221a and crank 223a as rod-shaped structures. One end of the oscillating element 221a is hinged to the frame 10a to achieve a rotatable connection between the oscillating element 221a and the frame 10a.

[0178] The foot pedal 23a provides stable support for the user's feet, and when the user steps on it, it transmits power, converting the action into the motion of a crank-rocker mechanism. The foot pedal 23a is reciprocally slidably connected to the connecting rod 222a. Specifically, the foot pedal 23a may include a footrest and a roller assembly connected to the footrest, allowing the footrest to slide on the connecting rod 222a via the roller assembly. The footrest may consist only of a pedal, or it may include a pedal, a front plate, a rear plate, side plates, etc. The roller assembly can also have various structures; for example, it may include multiple sets of rollers located on the front and rear sides of the footrest, with these rollers overlapping the connecting rod 222a to achieve a sliding connection between the foot pedal 23a and the connecting rod 222a. In other embodiments, each set of rollers may include an upper roller and a lower roller, such that the foot pedal seat clamps the upper and lower sides of the connecting rod 222a through the upper and lower rollers on the side, thereby achieving a sliding connection between the foot pedal 23a and the connecting rod 222a. The specific structure of the foot pedal 23a is not limited here.

[0179] The handrail 30a provides balance support for the user during movement, reducing the risk of falls due to excessive range of motion or instability. The handrail 30a may be made of plastic, rubber, or metal composite materials, providing a comfortable grip and sufficient strength to withstand the continuous forces exerted during movement. The handrail 30a is rotatably connected to the upright 11a, allowing it to rotate according to the user's movement and stride. This ensures that the handrail 30a rotates within a stable range, preventing excessive swaying or loss of control.

[0180] This application utilizes a rotating and sliding mechanism between the lower end of the handrail 30a and the swing member 221a, allowing the swing amplitude of the handrail 30a to differ from that of the swing member 221a. In other words, when the swing member 221a produces a large swing amplitude, the height of the connection point between the handrail 30a and the swing member 221a changes and adjusts due to the upward and downward sliding motion, resulting in a smaller swing amplitude for the handrail 30a. This avoids the excessive swinging of the handrail in the traditional elliptical trainer 100a caused by the large swing amplitude of the swing member 221a, ensuring that the handrail provides optimal support during exercise, so that the user does not need to frequently adjust their posture or worry about falling.

[0181] Further, referring to Figures 27 and 28, one of the handrail 30a and the swing member 221a is provided with a groove 31a and the other is provided with a protrusion 32a; the groove 31a extends in an elongated shape and the extension direction of the groove 31a is set at an angle with the front-back direction; the protrusion 32a slides along the extension direction of the groove 31a; the left-right direction, the longitudinal direction and the front-back direction are perpendicular to each other.

[0182] In this embodiment, the groove 31a guides and restricts the protrusion 32a from sliding along a certain trajectory, thereby limiting the swing angle of the armrest 30a. The length of the groove 31a controls the vertical sliding range of the armrest within a certain range, avoiding instability caused by excessive or insufficient amplitude. Since the extension direction of the groove 31a is set at an angle to the front-back direction, the protrusion 32a will encounter a certain resistance during sliding. This resistance helps to limit the swing angle of the armrest 30a and prevent it from swinging excessively. The cooperation between the protrusion 32a and the groove 31a ensures precise positioning and sliding between the components, preventing misalignment or excessive slippage.

[0183] Further, referring to Figures 27 and 28, the handrail 30a is rod-shaped. When the handrail 30a is provided with a groove 31a, the length direction of the groove 31a is arranged parallel to the length direction of the handrail 30a.

[0184] In this embodiment, the armrest 30a is rod-shaped, making it more ergonomic and easier for users to grip. At the same time, compared to large or complex-shaped armrests, the rod-shaped armrest 30a effectively saves space. "Parallel" refers to being parallel or nearly parallel. Because the length direction of the groove 31a is parallel to the length direction of the armrest 30a, a stable straight sliding path is formed on the groove 31a. Compared to curved sliding paths, straight sliding paths are easier to control and predict, thus reducing armrest swaying or instability caused by path changes, thereby helping to reduce arm and wrist fatigue and providing users with a more comfortable and natural gripping experience.

[0185] In one embodiment, as shown in Figures 27 and 28, the swing member 221a is rotatably connected to the upright 11a at the first connection point 41a; the swing member 221a is slidably engaged with the handrail 30a at the second connection point 42a; the second connection point 42a is disposed adjacent to the first connection point 41a and is located below the first connection point 41a.

[0186] In this embodiment, the first connection point 41a is the rotation center of the swing member 221a. The distance between the first connection point 41a and the second connection point 42a determines the maximum swing distance of the handrail. The fact that the second connection point 42a is located adjacent to the first connection point 41a means that the distance between the first connection point 41a and the second connection point 42a is relatively small, thereby shortening the swing path of the handrail.

[0187] When the second connection point 42a is above the first connection point 41a, the handrail may experience significant swaying and vibration due to gravity during swinging. This swaying may intensify, especially during high-speed swinging, leading to decreased structural stability. In this embodiment, however, the second connection point 42a is below the first connection point 41a, resulting in a relatively low center of gravity for the handrail. This allows the handrail to maintain a stable state during swinging under the influence of gravity.

[0188] Further, referring to Figures 27 and 28, the first connection point 41a and the second connection point 42a are the first segment of the swing member 221a; the swing member 221a is rod-shaped, and the ratio of the length of the first segment to the length of the swing member 221a is greater than 0 and less than or equal to 0.5.

[0189] In this embodiment, the distance between the first connection point 41a and the second connection point 42a determines the maximum swing distance of the handrail. A relatively short first segment (not exceeding half the total length) effectively limits the amplitude of movement of the swinging component 221a, thereby improving system stability and preventing imbalance or excessive movement due to excessive swing amplitude. Simultaneously, a shorter first segment means a shorter path for force transmission from the first connection point 41a to the second connection point 42a, thus reducing force loss and dispersion. This allows users to control the handrail's swing more directly and effectively, achieving more precise amplitude control. The ratio of the first segment's length to the swinging component 221a is greater than 0 and less than or equal to 0.5, and can be 0.5, 0.45a, 0.42a, 0.4, 0.36, 0.3, 0.27, 0.2, 0.23a, 0.1, etc., to precisely control the swing amplitude of the handrail 30a and provide a better motion experience.

[0190] In one embodiment, referring to Figures 27 and 28, one end of the connecting rod 222a is rotatably connected to the crank 223a, and the other end is rotatably connected to the oscillating member 221a at the third connection point 43a. The second connection point 42a is located between the first connection point 41a and the third connection point 43a.

[0191] In this embodiment, the second connection point 42a, located between the first connection point 41a and the third connection point 43a, limits the swing amplitude of the handrail. The first connection point 41a is the rotation center of the swing member 221a, and the movement of the third connection point 43a is transmitted to the swing member 221a through the connecting rod 222a. The second connection point 42a is located between them, acting as a "constraint point." When the swing member 221a rotates around the first connection point 41a under the drive of the connecting rod 222a, the range of motion of the handrail 30a at the second connection point 42a is limited to a relatively small range. Compared to when the second connection point 42a is located in other positions (such as near the edge of the swing member 221a), this positional relationship prevents the handrail 30a from swinging excessively due to excessive degrees of freedom.

[0192] Further referring to Figures 27 and 28, the motion component 21a also includes an adjusting rod 24a; one end of the adjusting rod 24a is fixedly connected to the foot pedal 23a, and the other end is rotatably connected to the swing member 221a; the foot pedal is slidably connected to the connecting rod. In this embodiment, the user can drive the swing member 221a to swing by applying force to the adjusting rod 24a through the foot pedal 23a, thereby increasing the flexibility of motion control. The change in the length of the adjusting rod 24a directly affects the swing radius of the swing member 221a. When the length of the adjusting rod 24a is longer, the swing radius increases, and the swing member 221a will swing to a larger angle under the same torque, thereby increasing the swing amplitude. Conversely, when the length of the adjusting rod 24a is shorter, the swing radius decreases, and the swing amplitude will also decrease accordingly.

[0193] Further, referring to Figures 27 and 28, the adjusting rod 24a and the swing member 221a are rotatably connected to the fourth connection point 44a; the fourth connection point 44a and the first connection point 41a are located at the two ends of the swing member 221a in the length direction, respectively; the second connection point 42a and the third connection point 43a are located between the first connection point 41a and the fourth connection point 44a.

[0194] In this embodiment, the first connection point 41a and the fourth connection point 44a are located at both ends of the swing member 221a. This design ensures that the swing member 221a can rotate or adjust evenly between the two endpoints. The first connection point 41a provides support and rotation functions, while the fourth connection point 44a controls the angle or position of the swing member 221a, making the entire swing process more stable and adjustable.

[0195] The arrangement of the second connection point 42a and the third connection point 43a between the first connection point 41a and the fourth connection point 44a ensures that the swing amplitude of the handrail is not consistent with that of the lower end of the swing member 221a during the swinging process. In other words, the swing amplitude of the handrail is less than that of the lower end of the swing member 221a during the swinging process.

[0196] Simultaneously, the handrail can slide up and down between the second connection point 42a and the swing member 221a. Thus, when the swing member 221a swings with a large amplitude, the handrail can flexibly adjust its position, avoiding excessive direct impact and resulting in a smaller swing amplitude. In other words, when the swing member 221a swings with a large amplitude, the sliding prevents the handrail from rotating excessively at a fixed point, thereby reducing the influence of torque on the handrail and avoiding excessive swaying caused by excessive torque.

[0197] In one embodiment, referring to Figures 27 and 28, the swing member 221a is rotatably connected to the upright 11a at the first connection point 41a; the swing member 221a is slidably engaged with the handrail 30a at the second connection point 42a; the second connection point 42a is disposed adjacent to the first connection point 41a; the handrail 30a is rotatably connected to the upright 11a at the fifth connection point 45a; the ratio of the distance between the second connection point 42a and the fifth connection point 45a to the distance between the first connection point 41a and the second connection point 42a is less than or equal to 2.

[0198] The distance between the second connection point 42a and the fifth connection point 45a determines the maximum radius of rotation of the handrail relative to the upright 11a (or the main frame of the elliptical trainer). When this distance decreases, the radius of rotation of the handrail decreases, potentially reducing the swing amplitude. The distance between the first connection point 41a and the second connection point 42a determines the swing space of the handrail through the second connection point 42a. When this distance increases, the potential swing amplitude of the handrail during swinging is greater. In this embodiment, the ratio of the distance between the second connection point 42a and the fifth connection point 45a to the distance between the first connection point 41a and the second connection point 42a is greater than 0 and less than or equal to 4. This ratio can be 4, 4.5, 4.6, 3, 2, 2.32, 1.5, 1, 1.32a, 0.5, or 0.3. This effectively controls the swing amplitude of the handrail.

[0199] In one embodiment, referring to Figures 27 and 28, the handrail 30a includes a connector 33a, a first connecting segment 34a, and a second connecting segment 35a. The connector 33a is rotatably connected to the second connecting rod, and the rotation direction of the connector 33a is parallel to the left-right direction. The first connecting segment 34a and the second connecting segment 35a are fixedly connected to the two ends of the connector 33a in the longitudinal direction, and the first connecting segment 34a and the second connecting segment 35a are set at an obtuse angle.

[0200] In this embodiment, the rotation direction of the connector 33a is parallel to the left-right direction, allowing the handrail to better accommodate the user's natural hand movements. Compared to the first connecting segment 34a and the second connecting segment 35a being connected at a right angle, in this embodiment, the first connecting segment 34a and the second connecting segment 35a are connected to the connector 33a at an obtuse angle, which provides stronger resistance to torsion and effectively prevents the handrail from bending or twisting under stress.

[0201] In one embodiment, referring to Figures 29 and 30, the elliptical trainer further includes a roller 400b, which is mounted on connecting rods 230, 222a, 230b, and 33. The distance between the axis of the roller 400b and the connection point between the crank members 220, 223a, 220b, and 31 and the frame 100, 10a, 100b, and 10 is greater than the distance between the crank members 220, 223a, 220b, and 31 and the frame 100, 10a, 100b, and 10. The distance between the connection points of crank components 220, 223a, 220b, 31 and connecting rods 230, 222a, 230b, 33; the foot pedal mechanisms 300, 23a, 300b, 60 include a foot pedal connecting rod 310b and a foot pedal 320b fixedly installed on the foot pedal connecting rod 310b. The front end of the foot pedal connecting rod 310b is rotatably connected to the rocker components 210, 221a, 210b, 32, and the rear part of the foot pedal connecting rod 310b is slidably connected to the roller 400b.

[0202] It should be emphasized that this embodiment can be used in combination with the elliptical trainer described in any of the foregoing embodiments.

[0203] Among them, connecting rods 230, 222a, 230b, 33 and foot pedal connecting rod 310b can be straight rods, or they can be designed as curved rods as needed, etc., without specific limitations. The length and width of connecting rods 230, 222a, 230b, 33 and foot pedal connecting rod 310b can also be selected and designed according to actual needs. This allows the rear ends of connecting rods 230, 222a, 230b, 33, or the position of connecting rods 230, 222a, 230b, 33 near their rear ends, to be rotatably connected to crank components 220, 223a, 220b, 31. Roller 400b can be fixedly connected to connecting rods 230, 222a, 230b, and 33, allowing foot pedal connecting rod 310b to slide back and forth on the rolling surface of roller 400b. Alternatively, roller 400b can be rotatably connected to connecting rods 230, 222a, 230b, and 33, in which case foot pedal connecting rod 310b, while sliding back and forth on the rolling surface of roller 400b, drives roller 400b to roll, making the sliding of foot pedal connecting rod 310b relative to connecting rods 230, 222a, 230b, and 33 more flexible and smooth. Roller 400b can be installed on the inner wall, outer wall, or top wall of connecting rods 230, 222a, 230b, and 33, etc., without specific limitations.

[0204] By installing rollers 400b on connecting rods 230, 222a, 230b, and 33, the foot pedal 320b slides back and forth on the rollers 400b via the foot pedal connecting rod 310b. Compared to the method where the foot pedal 320b slides directly on connecting rods 230, 222a, 230b, and 33, this method is not restricted by the connection points between connecting rods 230, 222a, 230b, and 33 and crank components 220, 223a, 220b, and 31. This allows the foot pedal 320b to slide back and forth on both the front and rear of the crank components 220, 223a, 220b, and 31. The elliptical trainer slides laterally, rather than just sliding on the front side of crank components 220, 223a, 220b, and 31. In this way, while achieving the same amplitude, the crank components 220, 223a, 220b, and 31 can be moved forward, making the entire elliptical trainer structure more compact and taking up less space. Under the premise of the same space occupation (front and back direction), since the foot pedal linkage 310b can drive the foot pedal 320b to move behind the roller 400b, the back and forth reciprocating sliding path of the foot pedal 320b is increased, thereby increasing the stride of the entire elliptical trainer.

[0205] There are many ways to ensure that the distance between the axis of roller 400b (point B in Figure 30) and the connection point between crank components 220, 223a, 220b, 31 and the frame 100, 10a, 100b, 10 (point C in Figure 30) is greater than the distance between the connection point between crank components 220, 223a, 220b, 31 and the frame 100, 10a, 100b, 10 (point C in Figure 30) and the connection point between crank components 220, 223a, 220b, 31 and the connecting rod 230, 222a, 230b, 33 (point A in Figure 30). For example, roller 400b can be positioned on the front and rear sides of the connecting rods 220, 223a, 220b, 31, or roller 400b can be connected to the connecting rod via an extension rod and positioned at... Below the connection points of crank components 220, 223a, 220b, 31 and connecting rods 230, 222a, 230b, 33, the installation position of roller 400b on connecting rods 230, 222a, 230b, 33 is not specifically limited. It is only necessary to ensure that the distance between the axis of roller 400b and the connection points of crank components 220, 223a, 220b, 31 and frames 100, 10a, 100b, 10 is greater than the distance between the connection points of crank components 220, 223a, 220b, 31 and frames 100, 10a, 100b, 10 and the connection points of crank components 220, 223a, 220b, 31 and connecting rods 230, 222a, 230b, 33 (as shown in Figure 30, the distance between BC is greater than the distance between AC) is acceptable.

[0206] By making the distance between the shaft of roller 400b and the connection point between crank components 220, 223a, 220b, 31 and the frame 100, 10a, 100b, 10 greater than the distance between the connection point between the crank components 220, 223a, 220b, 31 and the frame 100, 10a, 100b, 10 and the connection point between the crank components 220, 223a, 220b, 31 and the connecting rod 230, 222a, 230b, 33, compared to making the shaft of roller 400b and crank component 220, By aligning the connection points of rollers 400b, 220b, and 31 with those of connecting rods 230, 222a, 230b, and 33, the distance between the axis of rollers 400b and the connection points of crank components 220, 223a, 220b, and 31 and frames 100, 10a, 100b, and 10 can be increased. This increases the rotation radius of the axis of rollers 400b, thereby increasing the forward and backward movement distance of the entire foot pedal 320b relative to the ground. Therefore, the stride length of foot pedal 320b can be increased to a certain extent. Thus, the elliptical trainer of this application can achieve a large stride while being small in size and requiring little space, greatly improving the product's performance and effectively enhancing its competitiveness.

[0207] This application proposes an elliptical trainer.

[0208] In this embodiment of the application, please refer to Figures 29 and 30. The elliptical trainer includes a frame 100b, a crank rocker mechanism 200b, a foot pedal mechanism 300b, and rollers 400b.

[0209] The crank-rocker mechanism 200b includes a rocker element 210b, a crank element 220b, and a support link 230b rotatably connected to the rocker element 210b and the crank element 220b at both ends. One end of both the rocker element 210b and the crank element 220b is rotatably connected to the frame 100b. A roller 400b is mounted on the support link 230b, and the distance between the axis of the roller 400b and the connection point between the crank element 220b and the frame 100b is greater than the distance between the connection point between the crank element 220b and the frame 100b and the connection point between the crank element 220b and the support link 230b.

[0210] The foot pedal mechanism 300b includes a foot pedal link 310b and a foot pedal 320b fixedly installed on the foot pedal link 310b. The front end of the foot pedal link 310b is rotatably connected to the rocker member 210b, and the rear end of the foot pedal link 310b is slidably connected to the roller 400b.

[0211] In this embodiment, the frame 100b provides installation and support for structures such as the crank-rocker mechanism 200b and the foot pedal mechanism 300b. The overall frame of the frame 100b can have many variations, designed according to actual needs. For example, the frame 100b can be designed in a form similar to a bicycle frame or a scooter frame. No specific limitations are placed on the shape and structure of the frame 100b here. It is understood that there are two sets of the crank-rocker mechanism 200b, the foot pedal mechanism 300b, and the rollers 400b, with one set of each on the left and right sides of the frame 100b, respectively corresponding to exercising the user's left and right feet.

[0212] It should be noted that in the crank-rocker mechanism 200b, the crank component 220b is defined as a mechanism capable of full rotation. The rocker component 210b is defined as a mechanism capable of only rocking with a certain amplitude and not full rotation. Both the crank component 220b and the rocker component 210b can be rod-shaped or disc-shaped. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical trainer, both the crank component 220b and the rocker component 210b can optionally be rod-shaped. For ease of understanding, the following description will exemplify the crank component 220b and the rocker component 210b as rod-shaped structures.

[0213] The foot pedal 320b provides stable support for the user's foot, and when the user presses the foot pedal 320b, it transmits power to convert the action into the motion of the foot pedal linkage 310b. The foot pedal 320b can be fixedly mounted to the foot pedal linkage 310b by screws, welding, or other methods. Compared to directly sliding the foot pedal 320b onto the support linkage 230b via rollers 400b or linear guides, fixing the foot pedal 320b to the foot pedal linkage 310b simplifies the structure and installation of the foot pedal 320b. The foot pedal 320b may consist only of a pedal, or it may include a pedal, a front baffle, a rear baffle, side baffles, etc.; the specific structure of the foot pedal 320b is not limited here.

[0214] The rotational connections between any two of the above components can be hinged via a pivot and a shaft hole. The support link 230b and the pedal link 310b can be straight rods, or designed as curved rods as needed; no specific limitation is made here. The length and width of the support link 230b and the pedal link 310b can also be selected and designed according to actual needs. The rear end of the support link 230b, or a position near the rear end of the support link 230b, can be rotatably connected to the crank component 220b. The roller 400b can be fixedly connected to the support link 230b, allowing the pedal link 310b to slide back and forth on the rolling surface of the roller 400b; alternatively, the roller 400b can be rotatably connected to the support link 230b, in which case the pedal link 310b slides back and forth on the rolling surface of the roller 400b while simultaneously driving the roller 400b to roll, making the sliding of the pedal link 310b relative to the support link 230b more flexible and smooth. The roller 400b can be installed on the inner wall, outer wall, or top wall of the support link 230b, etc., without specific limitations.

[0215] By setting rollers 400b on the support link 230b, the foot pedal 320b slides back and forth on the rollers 400b via the foot pedal link 310b. Compared to the foot pedal 320b sliding directly on the support link 230b, this method is not limited by the connection point between the support link 230b and the crank 220b. This allows the foot pedal 320b to slide on both sides of the crank 220b, not just the front side. Thus, while maintaining the same stride length, the crank 220b can be moved forward, making the entire elliptical trainer more compact and space-saving. Furthermore, with the same space requirement (forward and backward direction), the foot pedal link 310b can move the foot pedal 320b behind the rollers 400b, increasing the forward and backward sliding path of the foot pedal 320b and thus increasing the stride length of the entire elliptical trainer.

[0216] There are many ways to make the distance between the axis of roller 400b (point B in Figure 30) and the connection point between crank component 220b and frame 100b (point C in Figure 30) greater than the distance between the connection point between crank component 220b and frame 100b (point C in Figure 30) and the connection point between crank component 220b and support connecting rod 230b (point A in Figure 30). For example, roller 400b can be positioned on both sides of the connecting rod at the front and rear of crank component 220b, or roller 400b can be extended... The rod is connected to the connecting rod and is located below the connection point between the crank component 220b and the support connecting rod 230b. The installation position of the roller 400b on the support connecting rod 230b is not specifically limited, as long as the distance between the axis of the roller 400b and the connection point between the crank component 220b and the frame 100b is greater than the distance between the connection point between the crank component 220b and the frame 100b and the connection point between the crank component 220b and the support connecting rod 230b (as shown in Figure 30, the distance between BC is greater than the distance between AC).

[0217] By making the distance between the axis of roller 400b and the connection point between crank component 220b and frame 100b greater than the distance between the connection point between crank component 220b and frame 100b and the connection point between crank component 220b and support link 230b, compared to making the axis of roller 400b and the connection point between crank component 220b and support link 230b coincide, the distance between the axis of roller 400b and the connection point between crank component 220b and frame 100b can be increased. This increases the rotation radius of the axis of roller 400b, thereby increasing the forward and backward movement distance of the entire foot pedal 320b relative to the ground, and thus, to a certain extent, increasing the stride length of the foot pedal 320b. Therefore, the elliptical trainer of this application can achieve a large stride exercise while being small in size and requiring little space, greatly improving the product's performance and effectively enhancing its competitiveness.

[0218] In one embodiment, as shown in Figures 29 to 33, the connection point between the crank component 220b and the support link 230b, and the axis of the roller 400b are spaced apart along the length of the support link 230b. This positions the roller 400b at the front or rear of the crank component 220b, which, compared to placing the roller 400b below the crank component 220b, eliminates the need for an additional extension rod connecting the roller 400b and the link, simplifying the connection structure and making the overall elliptical trainer more streamlined.

[0219] Furthermore, referring to Figures 29 and 30, the axis of the roller 400b is located in front of the connection point between the crank member 220b and the support link 230b. Thus, compared to having the axis of the roller 400b located behind the connection point between the crank member 220b and the support link 230b, there is no need for the rear end of the support link 230b to extend beyond the crank member 220b, resulting in a more compact and rational overall structure.

[0220] Furthermore, the rear end of the foot pedal 320b extends beyond the crank component 220b. This allows the foot pedal 320b to slide on both the front and rear sides of the crank component 220b. Compared to a design where the foot pedal 320b can only slide between the crank component 220b and the rocker arm 210b, moving the crank component 220b forward while maintaining the same stride length results in a more compact structure and smaller footprint for the entire elliptical trainer. Furthermore, within the same space requirement (front-back direction), the foot pedal linkage 310b can move the foot pedal 320b behind the crank component 220b, increasing the forward and backward sliding path of the foot pedal 320b and thus increasing the stride length of the entire elliptical trainer.

[0221] In the above embodiment, which combines the connection point of crank component 220b and support link 230b with the axis of roller 400b spaced apart along the length of support link 230b, further as shown in Figures 30 and 31, crank component 220b and support link 230b are defined as connected at point A, the axis of roller 400b is defined as point B, and crank component 220b and frame 100b are defined as connected at point C, wherein the distance between A and B is less than the distance between A and C.

[0222] In this embodiment, by making the distance between AB smaller than the distance between AC, the roller 400b is positioned near the connection point between the crank component 220b and the support link 230b. This increases the stride length of the foot pedal 320b while making more effective use of the space behind the crank component 220b, thus making the entire elliptical fitness machine more compact.

[0223] In one embodiment, as shown in Figures 29 and 30, the support link 230b is connected to the rocker 210b at point D, the rocker 210b is connected to the frame 100b at point E, and the foot pedal link 310b is connected to the rocker 210b at point F, wherein point D is located between E and F.

[0224] In this embodiment, point D is positioned between E and F. That is, when the rocker arm 210b is vertical, the connection point between the support link 230b and the rocker arm 210b is located above the connection point between the foot pedal link 310b and the rocker arm 210b, and the connection point between the support link 230b and the rocker arm 210b is located below the connection point between the rocker arm 210b and the frame 100b. This increases the distance between the connection point between the foot pedal link 310b and the rocker arm 210b and the connection point between the rocker arm 210b and the frame 100b. Therefore, under the premise that the rocker arm 210b swings at the same angle, the movement distance of the foot pedal link 310b is longer, thus cleverly increasing the stride length without increasing the space occupied by the elliptical trainer.

[0225] Further, referring to Figures 29 to 31, the foot pedal linkage 310b includes a first main body section 311b and a first forward bend section 312b connected to the front end of the first main body section 311b. The first main body section 311b extends in the front-rear direction, and the foot pedal 320b is installed on the first main body section 311b. The first forward bend section 312b is bent from back to front and downward. The front end of the first forward bend section 312b is rotatably connected to the lower end of the rocker member 210b.

[0226] In this embodiment, the front end of the foot pedal link 310b is bent downward to form a first forward bend 312b. This maximizes the distance between the connection point between the foot pedal link 310b and the rocker arm 210b and the connection point between the rocker arm 210b and the frame 100b, while simultaneously raising the height of the foot pedal 320b. This effectively prevents the first main body section 311b of the foot pedal link 310b from being too low and colliding with the ground. Furthermore, the integrated first forward bend 312b and first main body section 311b, compared to the method of additionally setting a diagonal bar to connect the foot pedal link 310b and the rocker arm 210b, results in fewer parts, thus simplifying the assembly of the entire machine.

[0227] Furthermore, the support link 230b includes a second main body section 231b and a second forward-curved section 232b connected to the front end of the second main body section 231b. The second main body section 231b extends in the same direction as the first main body section 311b. The roller 400b is mounted on the second main body section 231b. The second forward-curved section 232b is bent from back to front and upward. The front end of the second forward-curved section 232b is rotatably connected to the middle of the rocker member 210b. In this way, while ensuring that the second main body section 231b of the support link 230b is close to the first main body section 311b of the pedal link 310b, sufficient space is provided at the lower end of the support link 230b to connect to the front end of the pedal link 310b.

[0228] In one embodiment, as shown in FIG29, the support link 230b and the foot pedal link 310b are respectively disposed on the inner and outer sides of the rocker member 210b. In this way, the support link 230b and the foot pedal link 310b can be effectively staggered, so that there is sufficient distance between their side walls, thus effectively avoiding interference between the support link 230b and the foot pedal link 310b during movement.

[0229] In one embodiment, referring to Figure 33, the crank rocker mechanism 200b, the foot pedal mechanism 300b, and the roller 400b are each provided in two sets. Therefore, each side of the frame 100b is provided with a set of crank rocker mechanism 200b, foot pedal mechanism 300b, and roller 400b. The elliptical trainer also includes a handrail 500b, which is detachably or foldably connected to the rocker component 210b. The connection point between the handrail 500b and the rocker component 210b is located below the highest point of the foot pedal 320b during its movement.

[0230] In this embodiment, the crank-rocker mechanism 200b, foot pedal mechanism 300b, and roller 400b on each of the left and right sides of the frame 100b are installed and designed as described in the previous embodiment. The foot pedals 320b on the left and right sides of the frame 100b are respectively for the user's left and right feet to step on, thus achieving alternating leg training. The structure and form of the handrail 500b can refer to existing designs and are not specifically limited here. By including the handrail 500b in the elliptical exercise machine, and linking the handrail 500b with the rocker arm 210b, the user's arms can move synchronously through the handrail 500b while exercising their legs, achieving a full-body workout and improving the user's exercise effect. The handrail 500b can be detachably connected to the rocker arm 210b through plugging, screw fixing, or other methods. The handrail 500b can also be rotatably connected to the rocker arm 210b to achieve folding and uprighting of the handrail 500b. By making the armrest 500b foldably connected to the rocker arm 210b, and with the connection point between the armrest 500b and the rocker arm 210b located below the highest point of the foot pedal 320b during movement, the overall height of the elliptical trainer can be minimized by disassembling or folding the armrest 500b during storage and packaging. This reduces the storage and packaging size of the elliptical trainer with the armrest 500b, thereby reducing storage and transportation costs.

[0231] This application proposes an elliptical trainer.

[0232] In this embodiment, referring to Figures 34 to 38, the elliptical exercise machine includes a frame 10, a handrail assembly 20, a crank-rocker assembly 30, and a damping mechanism 40a. The handrail assembly 20 is rotatably connected to the frame 10; the crank-rocker assembly 30 is rotatably connected to the frame 10 and includes a rocker element 32, a crank element 31, and a connecting rod 33. The crank element 31 is rotatably connected to the connecting rod 33, and the connecting rod 33 is hinged to the rocker element 32. The foot pedal module 60 is connected to the connecting rod 33. 3. The transmission is connected to the rocker component 32 or the crank component 31; the amplitude reduction mechanism 40a includes a first transmission wheel 41, a second transmission wheel 42 and a transmission component 43. The first transmission wheel 41 is fixedly connected to the handrail assembly 20, the second transmission wheel 42 is fixedly connected to the rocker component 32, and the transmission component 43 is transmissionally connected to the first transmission wheel 41 and the second transmission wheel 42. The transmission ratio between the second transmission wheel 42 and the first transmission wheel 41 is greater than 1, so that the swing angle of the handrail assembly 20 is less than the swing angle of the rocker component 32.

[0233] In this embodiment, the frame 10 is the main frame of the elliptical trainer, used to support and fix various components, such as the handrail assembly 20, the crank rocker assembly 30, the foot pedal assembly, and the flywheel. The frame 10 can be made of metal materials, such as steel or aluminum alloy, to give it sufficient strength and stability. The shape of the frame 10 can be L-shaped or other shapes, which are not limited here.

[0234] The armrest assembly 20 is used by the user to hold during exercise, serving to support the user and facilitate arm movement. The armrest assembly 20 may consist of an armrest and a connector. The armrest may be made of plastic, rubber, or metal, and the connector connects the armrest to the frame 10 and allows it to rotate.

[0235] The crank-rocker assembly 30 includes a rocker element 32, a crank element 31, and a connecting rod 33. The rocker element 32 and the crank element 31 can be rod-shaped or disc-shaped, as long as they can be rotatably connected to the base. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical trainer, the rocker element 32 and the crank element 31 are rod-shaped. For ease of understanding, the following description will exemplify the rocker element 32 and the crank element 31 as rod-shaped structures. One end of the rocker element 32 is hinged to the base to achieve a rotatable connection between the rocker element 32 and the frame 10.

[0236] The foot pedal module 60 provides stable support for the user's feet. When the user steps on the foot pedal module 60, it transmits power, converting the action into the motion of the crank-rocker assembly 30. The foot pedal module 60 is slidably connected to the connecting rod 33. Specifically, the foot pedal module 60 includes a pedal and a roller assembly connected to the pedal, allowing the pedal to slide slidably to the connecting rod 33 via the roller assembly. The pedal moves in a circular motion with the crank 31, forming an elliptical motion path. Since the pedal is slidably connected to the connecting rod 33, the force of the pedal is not applied to the rocker 32 to cause it to swing. Therefore, an adjusting rod 34 is required, with its two ends hinged to the rocker 32 and the pedal, respectively. The force of the pedal is applied to the adjusting rod 34, which pushes the rocker 32 to swing, thereby pushing the armrest to swing, thus completing the full motion coordination. In other embodiments, the pedal module 60 may also be fixedly connected to the connecting rod 33, which is hinged to the rocker member 32. The pedal is then driven to the crank member 31 via the connecting rod 33. Specifically, the connecting rod 33 is reciprocally slidably connected to the crank member 31, so that while the connecting rod 33 reciprocates, it also moves in a circular motion with the crank member 31, thereby forming an elliptical motion path, which in turn causes the pedal module 60 to form an elliptical motion path.

[0237] The damping mechanism 40a connects the armrest assembly 20 and the crank-rocker assembly 30, transmitting power from the crank-rocker assembly 30 to the armrest via the transmission member 43 and the transmission wheel. The damping mechanism 40a includes a first transmission wheel 41, a second transmission wheel 42, and the transmission member 43. The first transmission wheel 41 is fixedly connected to the armrest assembly 20, and the second transmission wheel 42 is fixedly connected to the rocker assembly 32. The transmission member 43 connects the first transmission wheel 41 and the second transmission wheel 42 and transmits power. The transmission member 43 can be a gear, a belt 433, or other structure capable of transmitting power. The first transmission wheel 41 and the second transmission wheel 42 can be gears or rollers; no limitation is made here. The diameters of the first transmission wheel 41 and the second transmission wheel 42 can be the same or different. When the diameters are the same, the number of teeth on the first transmission wheel 41 is greater than the number of teeth on the second transmission wheel 42. When the diameters are different, the diameter of the first transmission wheel 41 should be greater than the diameter of the second transmission wheel 42, so that the number of teeth on the first transmission wheel 41 is greater than the number of teeth on the second transmission wheel 42.

[0238] The elliptical trainer of this application provides an amplitude reduction mechanism 40a between the crank rocker assembly 30 and the handrail assembly 20, so that the handrail assembly 20 and the rocker 32 are not directly connected, thereby allowing the motion ratio between the handrail assembly 20 and the rocker 32 to be flexibly adjusted.

[0239] Secondly, power is transmitted from the pedal module 60 to the crank rocker assembly 30, and then to the armrest assembly 20 via the damping mechanism 40a. This means that the second transmission wheel 42 is the driving wheel and the first transmission wheel 41 is the driven wheel. Therefore, the transmission ratio between the second transmission wheel 42 and the first transmission wheel 41 is greater than 1, indicating that the rotational speed of the second transmission wheel 42 is greater than that of the first transmission wheel 41. Consequently, in the same amount of time, the rotation angle of the first transmission wheel 41 is less than that of the second transmission wheel 42, thus reducing the swing angle of the armrest assembly 20. This results in the armrest assembly 20 having a smaller swing angle than the rocker arm 32. With the swing amplitude of the armrest assembly 20 appropriately reduced, the user's arm movement range becomes more comfortable, especially when taking larger strides, avoiding discomfort caused by excessive arm swing and enhancing the smoothness and comfort of movement.

[0240] In one embodiment, the diameter of the first transmission wheel 41 is larger than the diameter of the second transmission wheel 42. This embodiment achieves a transmission ratio greater than 1 by adjusting the diameters of the first transmission wheel 41 and the second transmission wheel 42. The first transmission wheel 41 and the second transmission wheel 42 can be gears or rollers, without limitation. When both are gears, generally, the diameter of the first transmission wheel 41 is larger than the diameter of the second transmission wheel 42, meaning that the first transmission wheel 41 has more teeth than the second transmission wheel 42. In the same rotation time, the rotational speed of the first transmission wheel 41 is less than the rotational speed of the second transmission wheel 42, thereby achieving a transmission ratio greater than 1 between the second transmission wheel 42 and the first transmission wheel 41, so that the swing angle of the handrail is less than the swing angle of the rocker arm 32.

[0241] When the first transmission wheel 41 and the second transmission wheel 42 are rollers, the diameter of the first transmission wheel 41 is larger than the diameter of the second transmission wheel 42, which also means that in the same rotation time, the rotation angle of the first transmission wheel 41 is smaller than the rotation angle of the second transmission wheel 42, thereby making the swing angle of the handrail assembly 20 smaller than the swing angle of the rocker 32.

[0242] Preferably, the diameter ratio of the first transmission wheel 41 and the second transmission wheel 42 is greater than or equal to 1.5 and less than or equal to 5, and can be 1.5, 2, 3, 4 and 5 respectively, so as to precisely control the swing amplitude of the handrail assembly 20 and improve the user's exercise experience.

[0243] In one embodiment, the first transmission wheel 41 and the second transmission wheel 42 are gears, and the number of teeth of the first transmission wheel 41 is greater than the number of teeth of the second transmission wheel 42.

[0244] In this embodiment, the first transmission wheel 41 and the second transmission wheel 42 are gears. By adjusting the number of teeth on the first transmission wheel 41 and the second transmission wheel 42, the transmission ratio between them is greater than 1. The diameters of the first transmission wheel 41 and the second transmission wheel 42 can be the same or different, as long as the number of teeth on the first transmission wheel 41 is greater than the number of teeth on the second transmission wheel 42. There is no restriction here. By adjusting the number of teeth on the gears, with the first transmission wheel 41 having more teeth than the second transmission wheel 42, the swing amplitude of the armrest assembly 20 can be precisely controlled. A larger number of teeth ensures a slower rotation speed, thereby making the swing angle of the armrest smaller than the swing angle of the rocker arm 32, improving the comfort and smoothness of the movement. Secondly, transmitting power through gears can reduce energy loss and improve the stability of power transmission.

[0245] Referring to Figures 34 and 35, in the first embodiment, the transmission member 43 includes a first gear 431, which meshes with a first transmission wheel 41 and a second transmission wheel 42.

[0246] In this embodiment, the transmission component 43, the first transmission wheel 41, and the second transmission wheel 42 are all gears. The first gear 431 is located between the first transmission wheel 41 and the second transmission wheel 42. The first gear 431 can be arranged side by side with the first transmission wheel 41 and the second transmission wheel 42 in the longitudinal direction, or it can be staggered in the longitudinal direction; there is no limitation here. This embodiment ensures smooth power transmission through gear meshing, and the transmission ratio is greater than 1, thereby making the swing angle of the handrail assembly 20 smaller than the swing angle of the rocker component 32. Secondly, the meshing connection of the first gear 431 ensures the transmission efficiency and accuracy between the first transmission wheel 41 and the second transmission wheel 42. Gear meshing transmission reduces friction and energy loss, making the system operate more smoothly and improving the overall stability.

[0247] Furthermore, the transmission component 43 also includes a second gear 432. The first gear 431 is meshed with the first transmission wheel 41, and the second gear 432 is meshed with the second transmission wheel 42. The first gear 431 and the second gear 432 are fixedly connected and arranged side by side in the left-right direction.

[0248] In this embodiment, the diameter of the first gear 431 is smaller than the diameter of the second gear 432. The first gear 431 meshes with the first transmission wheel 41 with a larger diameter, and the second gear 432 meshes with the second transmission wheel 42 with a smaller diameter. The first gear 431 and the second gear 432 are arranged side by side in the left-right direction, thereby saving longitudinal space and making the structure of the amplification mechanism 40a more compact.

[0249] In one embodiment, the elliptical trainer includes two handrail assemblies 20, two transmission assemblies, and two crank rocker assemblies 30. The frame 10 is provided with a handrail assembly 20, a transmission assembly, and a crank rocker assembly 30 on opposite sides in the left-right direction. The amplitude reduction mechanism 40a also includes a first connecting shaft 44, a second connecting shaft 45, and a third connecting shaft 46. The first connecting shaft 44 and the second connecting shaft 45 are respectively connected to a first transmission wheel 41 and a handrail assembly 20 at opposite ends in the left-right direction. The second connecting shaft 45 is respectively connected to a second transmission wheel 42 and a crank rocker assembly 30 at opposite ends in the left-right direction. The third connecting shaft 46 is rotatably connected to the transmission member 43 at opposite ends in the left-right direction. The third connecting shaft 46 is longitudinally offset from the first connecting shaft 44 and the second connecting shaft 45.

[0250] In this embodiment, the elliptical trainer includes two handrail assemblies 20, two transmission assemblies, and two crank-rocker assemblies 30. The frame 10 has a handrail assembly 20, a transmission assembly, and a crank-rocker assembly 30 on opposite sides in the left-right direction. The structure of each side ensures the symmetry and balance of the elliptical trainer.

[0251] The arrangement of the first coupling 44, the second coupling 45, and the third coupling 46 ensures that the left and right armrest assemblies 20 and crank-rocker assemblies 30 can move synchronously. The first coupling 44 and the second coupling 45 are connected to the armrest assembly 20 and the crank-rocker assembly 30 respectively, while the transmission component 43 connected to the third coupling 46 acts as a central hub, coordinating the movement of both. In this way, the armrest and pedal system can work in coordination, improving the user's exercise experience.

[0252] Secondly, the longitudinally staggered arrangement of the three couplings effectively optimizes the internal spatial layout of the frame 10, reduces the space occupied by the system, and improves the system's stability. The staggered arrangement of the different couplings ensures that power transmission during the transmission process is undisturbed, avoiding mechanical vibrations caused by excessive concentration of space.

[0253] Referring to Figures 3 to 5, in the second embodiment, the transmission component 43 is a belt 433, which is wound around the first transmission wheel 41 and the second transmission wheel 42.

[0254] In this embodiment, the transmission component 43 is a belt 433, which is wound between the first transmission pulley 41 and the second transmission pulley 42. Through the transmission of the belt 433, power can be efficiently transmitted between the first transmission pulley 41 and the second transmission pulley 42, thereby achieving coordinated movement between the armrest assembly 20 and the crank rocker assembly 30. Compared to a gear system, the belt 433 transmission system is simpler to adjust and maintain. Furthermore, replacing the belt 433 is more convenient than replacing gears, reducing maintenance costs.

[0255] In one embodiment, both the first transmission wheel 41 and the second transmission wheel 42 are provided with belt grooves 47. A belt 433 is embedded in the belt groove 47. The bottom wall of the belt groove 47 is provided with serrations 48, and a rack 434 is provided on the belt 433. The serrations 48 and the rack 434 mesh with each other. This allows the belt 433 to be more securely connected to the transmission wheel, preventing belt slippage and improving transmission efficiency and stability. The meshing of the rack 434 and the serrations 48 precisely controls the relative movement between the belt 433 and the transmission wheel, ensuring that the transmission ratio remains stable. This precise control ensures synchronization and coordination during movement, avoiding motion disruption caused by uneven transmission.

[0256] In one embodiment, the center distance between the first transmission wheel 41 and the second transmission wheel 42 is greater than or equal to 4 cm and less than or equal to 6 cm. Within this range, the compactness of the damping mechanism 40a is ensured, while providing adequate space for the belt 433 or gears, avoiding excessive tension or slack, and ensuring smooth power transmission. If the center distance is too large, the belt 433 or other transmission components 43 of the damping mechanism 40a may become too loose, leading to decreased transmission efficiency or even slippage. Furthermore, a larger center distance results in the transmission system occupying more space, increasing the equipment size and hindering the design of a compact structure. If the center distance is too small, the distance between the transmission wheels is too short, affecting the size setting of the transmission wheels and causing their diameter to be too small, thus failing to effectively transmit power to the handrail assembly 20.

[0257] In one embodiment, the crank rocker assembly 30 further includes an adjusting rod 34, one end of which is hinged to the rocker member 32, and the other end is fixedly connected to the pedal module 60, so that when the rocker member 32 rotates to its limit position, the pedal module 60 extends beyond the connecting rod 33.

[0258] In this embodiment, one end of the adjusting rod 34 is hinged to the rocker member 32, and the other end is fixedly connected to the foot pedal module 60. This allows the adjusting rod 34 to effectively adjust the position of the foot pedal module 60 during movement and ensures the coordinated operation of the foot pedal module 60 with other components. When the rocker member 32 rotates to its limit position, the foot pedal module 60 will partially extend beyond the connecting rod 33, meaning that the length of the connecting rod 33 can be set to be smaller, allowing the foot pedal module 60 to achieve a larger stride within a compact structure. At this time, the adjusting rod 34 acts as a limiter, preventing the foot pedal module 60 from detaching from the connecting rod 33. In this way, the elliptical trainer can achieve a larger stride within a compact structure without affecting the movement stability of each component.

[0259] In one embodiment, the frame 10 includes a frame body 14 and an upright 11 connected to the front end of the frame body. The upright 11 protrudes from the top wall of the frame body 14 in the vertical direction. The upright 11 includes a first column 111 and a second column 112. The bottom end of the second column 112 is foldably connected to the top of the frame body 14 around a horizontal axis. The bottom end of the first column 111 is foldably or detachably connected to the top end of the second column 112 around a horizontal axis, so that when the elliptical trainer is in the storage position, the first column 111 and the second column 112 can be folded to the top of the frame body 14. The upper end of the rocker 32 is rotatably connected to the second column 112. The handrail 20 is detachably or foldably rotatably connected to the second column 112 at a position above the rocker 32. A fixed handle 70 is installed on the second column 112.

[0260] It should be emphasized that this embodiment and any of the following embodiments that make further improvements to this embodiment can be used in combination with the elliptical trainer described in any of the foregoing embodiments.

[0261] The frame 10 includes a frame body 14 and uprights 11 connected to each other. The frame body 14 can be an integrally welded structure. The uprights 11 can extend upward from the frame body 14 and tilt forward to accommodate the user's exercise space, or they can extend vertically in the vertical direction, without limitation. The uprights 11 are arranged in the vertical direction and are composed of a first column 111 and a second column 112. The bottom of the second column 112 is rotatably connected to the top wall of the frame body 14, allowing the second column 112 to fold relative to the frame body 14 around a horizontally arranged pivot. The lower end of the first column 111 is foldably connected to the upper end of the second column 112 via a horizontal axis, allowing the first column 111 to fold relative to the second column 112, thus forming a multi-level folding structure for the uprights 11. Since the first column 111 is at the top of the elliptical exercise machine, its assembly is easier than that of the second column 112. Therefore, in another embodiment, the first column 111 can be connected to the second column 112 by a detachable connection method such as a socket or snap-fit. When the elliptical trainer is switched to the storage state, first remove the first column 111, and then rotate the second column 112 to the top of the frame body 14.

[0262] The top of the first column 111 is used to fix a fixed handle 70, for example, by welding the fixed handle 70 to the first column 111, so that the fixed handle 70 can be stably held by the user in the non-folded state. In addition, the top of the first column 111 can also be used to install a display screen to enhance the user experience.

[0263] Understandably, foldable connection methods typically include a rotating structure and a detachable fixing structure. When switching from the unfolded position to the folded position, the fixing structure between the two is removed before folding. When switching from the folded position to the unfolded position, both are first unfolded, and then fixed in place using the fixing structure, which can be a threaded fastener or a snap-fit ​​structure. For example, the top of the second column 112 has a limiting plate protruding from it. In the unfolded position, the first column 111 is fixedly connected to the limiting plate by a threaded fastener. When switching from the unfolded position to the folded position, the threaded fastener is loosened to allow the first column 111 and the limiting plate to contact and fix in place. Then, the hinge structure allows the first column 111 to fold and rotate relative to the second column 112.

[0264] The rod of the rocker 32 is connected to the handrail 20 through a suitable linkage mechanism, so that the handrail 20 can move synchronously with the reciprocating swing of the rocker 32. The linkage mechanism can be a connecting rod, a transmission link 40 with amplitude reduction function, or a transmission wheel, etc., and there are no restrictions here.

[0265] Both the rocker arm 32 and the handrail 20 are detachably or foldably connected to the second column 112. Specifically, the end of the rocker arm 32 away from the connecting rod 33 is connected to the second column 112 via a plug-in, snap-fit, threaded connection, or rotatable connection, allowing the rocker arm 32 to maintain its transmission relationship with the connecting rod 33 and its rotational relationship with the second column 112 under normal use. When stored, the user can rotate the rocker arm 32 around its pivot or release the fixed connection, thus detaching the rocker arm 32 from the second column 112. Since the rocker arm 32 needs to swing significantly during operation of the elliptical trainer, its natural shape usually extends outward. If it remains extended in the stored position, its length will significantly increase the overall lateral dimension. Therefore, by folding or disassembling the rocker arm 32, it can be made to fit against the side of the second column 112 or completely removed, thus no longer protruding outward and effectively compressing the lateral volume.

[0266] Similarly, the handrail 20 is plugged in, snapped in, threaded in, or rotatably connected to the top of the second column 112. In this embodiment, the handrail 20 needs to swing back and forth with the rocker arm 32 during normal exercise, so its structure is often relatively long and extends forward or outward. In traditional elliptical trainers, the protruding length of the handrail 20 is one of the main factors affecting the storage volume. To address this, this embodiment provides a foldable or detachable structure, allowing the handrail 20 to be folded and fitted along the direction of the second column 112 when stored, or directly detached and placed inside the frame 10 body 14 or on the side, thereby significantly reducing the front-to-back or lateral dimensions occupied.

[0267] In use, both the first column 111 and the second column 112 are in the extended position, the upright 11 extends vertically, and the handrail 20 and fixed handle 70 are in normal swing or fixed motion postures, respectively. The crank rocker assembly 30 enables the elliptical motion trajectory of the elliptical exercise machine to meet the user's fitness needs. In storage or transport mode, the handrail 20 and rocker assembly 32 are first folded or removed using their detachable or foldable structure; then, the first column 111 is folded relative to the second column 112 around the horizontal axis, bringing it close to the second column 112; finally, the second column 112 is folded relative to the frame body 14 to the top of the frame body 14, so that the entire upright 11 assembly is compactly stacked on top of the frame body 14. Through this multi-stage folding method, the overall height and lateral dimensions of the elliptical exercise machine are significantly reduced.

[0268] It should be noted that the first column 111 rotates along the first axis and the second column 112 rotates along the second axis. The first axis and the second axis are usually set in parallel, but the rotation directions of the first column 111 and the second column 112 can be the same or different. For example, when switching to the storage position, the first column 111 and the second column 112 can both rotate backward around the axis, or the first column 111 can rotate forward and the second column 112 can rotate backward. That is to say, in the storage position, the first column 111 can be above the second column 112 or below the second column 112.

[0269] This application's elliptical trainer includes a frame 10, a crank-rocker assembly 30, and handrails 20. The crank-rocker assembly 30 is rotatably connected to the frame 10 and is used to achieve the regular elliptical motion trajectory of the elliptical trainer to meet the user's fitness needs. The frame 10 includes a vertical pole 11 and a frame body 14. The vertical pole 11 includes a first column 111 and a second column 112. The first column 111 is foldably connected to the second column 112, and the second column 112 is foldably or detachably connected to the frame body 14. That is, the elliptical trainer can have a three-fold connection, thereby reducing the front-to-back dimensions of the elliptical trainer in the storage position. Furthermore, by combining the rocker arm 32, which is detachably or foldably connected to the second column 112, and the handrails 20, the front-to-back dimensions of the elliptical trainer in the storage position are further reduced, allowing for a more compact folded state when stored, significantly reducing the folded volume of the elliptical trainer and lowering transportation costs.

[0270] Specifically, the second column 112 has an inner side 123 facing the rear, and the armrest 20 and the rocker 32 are located on the second column 112 away from the inner side 123; when the elliptical trainer is switched to the storage position, the first column 111 is disassembled or folded back around the first horizontal axis to the inner side 123, and the second column 112 is folded back around the second horizontal axis or removed to the top of the frame body 14, with the first horizontal axis parallel to the second horizontal axis, so that in the storage position, the second column 112 is located on top of the first column 111.

[0271] Furthermore, the length of the first column 111 is less than or equal to the length of the second column 112, so that the first column 111 is folded back around the first transverse axis to the inner side 123, ensuring that the first column 111 is completely within the projection range of the second column 112 after folding.

[0272] Furthermore, referring to Figures 41 and 44, the frame 10 also includes a support rod 113 protruding from the top wall of the frame body 14, and a second column 112 is rotatably connected to the top of the support rod 113; in the storage position, the inner side 123 of the second column 112, the support rod 113 and the top wall of the frame body 14 enclose a receiving space 125, and the first column 111 is received in the receiving space 125.

[0273] Furthermore, the armrest 20 also includes a handle 22 for the user to hold, and the handle 22 is detachably and fixedly connected to the first swing segment 31, avoiding the first hinge point 51 and the third hinge point 53.

[0274] Furthermore, the connecting rod 33 includes a connecting section 331 and a support section 332 that are fixedly connected to each other. The connecting section 331 is rotatably connected to the rocker member 32, and the support section 332 is rotatably connected to the crank member 31. The foot pedal module 60 is slidably connected to the support section 332 in the front-back direction. The included angle between the connecting section 331 and the support section 332 is less than or equal to 120° and greater than or equal to 60°.

[0275] Furthermore, the rocker component 32 also includes a first segment 321 and a second segment 322 that are fixedly connected to each other. The first segment 321 is rotatably connected to the second column 112, and the connecting segment 331 is rotatably connected to the second segment 322. The second segment 322 is set at an obtuse angle to the first segment 321 or is set in a straight line. When the second segment is set at an obtuse angle to the first segment, the second segment 322 extends from the first segment 321 in the vertical direction and is tilted backward.

[0276] Furthermore, the elliptical trainer also includes two support components 80, which are fixedly connected to opposite ends of the frame body 14 in the front-back direction. Each support component 80 includes at least a first base plate 81 and a second base plate 82 connected to each other. The first base plate 81 and the second base plate 82 are detachably fixedly connected to the frame body 14, and the first base plate 81 and the second base plate 82 are located on both sides of the frame body 14 in the left-right direction. The distance between the first base plate 81 and the second base plate 82 gradually increases in the front-back direction from the frame body 14 toward the direction away from the frame body 14.

[0277] This application proposes an elliptical trainer.

[0278] Referring to Figures 39 to 44 in this embodiment, the elliptical trainer includes a frame 10, a crank rocker assembly 30, and a handrail 20. The frame 10 includes a frame body 14 and an upright post 11 connected to each other. The upright post 11 protrudes vertically from the top wall of the frame body 14 and includes a first post 111 and a second post 112. The first post 111 is used to fix the handle 70. The first post 111 is foldably or detachably connected to the second post 112 around a horizontal axis. The second post 112 is foldably connected to the frame body 14, so that the elliptical trainer can be retracted... When in the storage position, the first column 111 and the second column 112 can be folded to the top of the frame body 14; the crank rocker assembly 30 includes a crank 31, a rocker 32 and a connecting rod 33. The crank 31 is rotatably connected to the frame body 14, and the two ends of the connecting rod 33 are rotatably connected to the crank 31 and the rocker 32 respectively. The connecting rod 33 is used to connect the foot pedal module 60; the rocker 32 is detachably or foldably rotatably connected to one end of the second column 112, and the armrest 20 is detachably or foldably connected to the other end of the second column 112, and the armrest 20 is throttle-connected to the rocker 32.

[0279] In this embodiment, the frame 10 is the main frame 14 of the elliptical trainer, providing mounting positions for the crank rocker assembly 30 and the handrail 20. The frame 10 can be made of metal materials, such as steel or aluminum alloy, to give it sufficient strength and stability. The shape of the frame 10 can be an inverted F shape or other shapes, which are not limited here.

[0280] The frame 10 includes a frame body 14 and uprights 11 connected to each other. The frame body 14 can be an integrally welded structure. The uprights 11 can extend upward from the frame body 14 and tilt forward to accommodate the user's exercise space, or they can extend vertically in the vertical direction; there is no limitation on this. The uprights 11 are arranged in the vertical direction and are composed of a first column 111 and a second column 112. The bottom of the second column 112 is rotatably connected to the top wall of the frame body 14, allowing the second column 112 to fold relative to the frame body 14 around a horizontally arranged pivot. The lower end of the first column 111 is foldably connected to the upper end of the second column 112 via a horizontal axis, allowing the first column 111 to fold relative to the second column 112, thus forming a multi-level folding structure for the uprights 11. In another embodiment, since the first column 111 is at the top of the elliptical exercise machine, its assembly is easier than that of the second column 112. Therefore, the first column 111 can be connected to the second column 112 by a detachable connection method such as a socket or snap-fit. When the elliptical trainer is switched to the storage state, first remove the first column 111, and then rotate the second column 112 to the top of the frame body 14.

[0281] The top of the first column 111 is used to fix a fixed handle 70, for example, by welding the fixed handle 70 to the first column 111, so that the fixed handle 70 can be stably held by the user in the non-folded state. In addition, the top of the first column 111 can also be used to install a display screen to enhance the user experience.

[0282] Understandably, foldable connection methods typically include a rotating structure and a detachable fixing structure. When switching from the unfolded position to the folded position, the fixing structure between the two is removed before folding. When switching from the folded position to the unfolded position, both are first unfolded, and then fixed in place using the fixing structure, which can be a threaded fastener or a snap-fit ​​structure. For example, the top of the second column 112 has a limiting plate protruding from it. In the unfolded position, the first column 111 is fixedly connected to the limiting plate by a threaded fastener. When switching from the unfolded position to the folded position, the threaded fastener is loosened to allow the first column 111 and the limiting plate to contact and fix in place. Then, the hinge structure allows the first column 111 to fold and rotate relative to the second column 112.

[0283] The crank-rocker assembly 30 includes a crank component 31, a rocker component 32, and a connecting rod 33. The rocker component 32 and crank component 31 can be rod-shaped or disc-shaped, as long as they can be rotatably connected to the frame 10. To reduce weight, simplify the structure, and minimize the space occupied by the elliptical trainer, both the rocker component 32 and crank component 31 are rod-shaped. For ease of understanding, the following description will exemplify the rocker component 32 and crank component 31 as rod-shaped structures.

[0284] The crank assembly 31 is rotatably connected to the frame body 14, and the two ends of the connecting rod 33 are rotatably connected to the outer end of the crank assembly 31 and the middle of the rocker assembly 32, respectively, forming a typical elliptical motion transmission chain. Specifically, when the user steps on the pedal module 60 to rotate the crank assembly 31, the crank assembly 31 transmits the circular motion to the rocker assembly 32 through the connecting rod 33. Since the two ends of the connecting rod 33 are rotatably connected to the crank assembly 31 and the rocker assembly 32, respectively, the circular motion of the crank assembly 31 causes one end of the connecting rod 33 to move in a circular motion with the crank assembly 31, while the other end of the connecting rod 33 pushes the rocker assembly 32 to swing around its rotational connection point with the upright 11. At the same time, the swing of the rocker assembly 32 will cause the pedal module 60 to move back and forth through the connection of the connecting rod 33 to the pedal module 60. At this time, as the crank 31 continues to rotate, the position and angle of the connecting rod 33 also change continuously. This change, in conjunction with the oscillation of the rocker arm 32, causes the pedal module 60 to move in an elliptical trajectory. In other words, when the crank 31 rotates to a certain position, the connecting rod 33 pushes the rocker arm 32 to swing in one direction, simultaneously causing the pedal module 60 to move forward; when the crank 31 continues to rotate, the position of the connecting rod 33 changes, the rocker arm 32 swings in the opposite direction, and the pedal module 60 moves backward, thus creating an elliptical motion trajectory.

[0285] The foot pedal module 60 can be fixedly connected to the link 33 or slidably connected to the link 33, and there is no restriction on this.

[0286] One end of the rocker 32 is detachably or foldably connected to the end of the second column 112. The rod of the rocker 32 is connected to the handrail 20 through a suitable linkage mechanism, so that the handrail 20 can move synchronously with the reciprocating swing of the rocker 32. The linkage mechanism can be a connecting rod, a transmission link 40 with a reduction function, or a transmission wheel, etc., which are not limited here.

[0287] Both the rocker arm 32 and the handrail 20 are detachably or foldably connected to the second column 112. Specifically, the end of the rocker arm 32 away from the connecting rod 33 is connected to the second column 112 via a plug-in, snap-fit, threaded connection, or rotatable connection, allowing the rocker arm 32 to maintain its transmission relationship with the connecting rod 33 and its rotational relationship with the second column 112 under normal use. When stored, the user can rotate the rocker arm 32 around its pivot or release the fixed connection, thus detaching the rocker arm 32 from the second column 112. Since the rocker arm 32 needs to swing significantly during operation of the elliptical trainer, its natural shape usually extends outward. If it remains extended in the stored position, its length will significantly increase the overall lateral dimension. Therefore, by folding or disassembling the rocker arm 32, it can be made to fit against the side of the second column 112 or completely removed, thus no longer protruding outward and effectively compressing the lateral volume.

[0288] Similarly, the handrail 20 is plugged in, snapped in, threaded in, or rotatably connected to the top of the second column 112. In this embodiment, the handrail 20 needs to swing back and forth with the rocker arm 32 during normal exercise, so its structure is often relatively long and extends forward or outward. In traditional elliptical trainers, the protruding length of the handrail 20 is one of the main factors affecting the storage volume. To address this, this embodiment provides a foldable or detachable structure, allowing the handrail 20 to be folded and fitted along the direction of the second column 112 when stored, or directly detached and placed inside the frame 10 body 14 or on the side, thereby significantly reducing the front-to-back or lateral dimensions occupied.

[0289] In use, both the first column 111 and the second column 112 are in the extended position, the upright 11 extends vertically, and the handrail 20 and fixed handle 70 are in normal swing or fixed motion postures, respectively. The crank rocker assembly 30 enables the elliptical motion trajectory of the elliptical exercise machine to meet the user's fitness needs. In storage or transport mode, the handrail 20 and rocker assembly 32 are first folded or removed using their detachable or foldable structure; then, the first column 111 is folded relative to the second column 112 around the horizontal axis, bringing it close to the second column 112; finally, the second column 112 is folded relative to the frame body 14 to the top of the frame body 14, so that the entire upright 11 assembly is compactly stacked on top of the frame body 14. Through this multi-stage folding method, the overall height and lateral dimensions of the elliptical exercise machine are significantly reduced.

[0290] It should be noted that the first column 111 rotates along the first axis and the second column 112 rotates along the second axis. The first axis and the second axis are usually set in parallel, but the rotation directions of the first column 111 and the second column 112 can be the same or different. For example, when switching to the storage position, the first column 111 and the second column 112 can both rotate backward around the axis, or the first column 111 can rotate forward and the second column 112 can rotate backward. That is to say, in the storage position, the first column 111 can be above the second column 112 or below the second column 112.

[0291] This application's elliptical trainer includes a frame 10, a crank-rocker assembly 30, and handrails 20. The crank-rocker assembly 30 is rotatably connected to the frame 10 and is used to achieve the regular elliptical motion trajectory of the elliptical trainer to meet the user's fitness needs. The frame 10 includes a vertical pole 11 and a frame body 14. The vertical pole 11 includes a first column 111 and a second column 112. The first column 111 is foldably connected to the second column 112, and the second column 112 is foldably or detachably connected to the frame body 14. That is, the elliptical trainer can have a three-fold connection, thereby reducing the front-to-back dimensions of the elliptical trainer in the storage position. Furthermore, by combining the rocker arm 32, which is detachably or foldably connected to the second column 112, and the handrails 20, the front-to-back dimensions of the elliptical trainer in the storage position are further reduced, allowing for a more compact folded state when stored, significantly reducing the folded volume of the elliptical trainer and lowering transportation costs.

[0292] Specifically, the second column 112 has an inner side 123 facing the rear, and the armrest 20 and the rocker 32 are located on the second column 112 away from the inner side 123; when the elliptical trainer is switched to the storage position, the first column 111 is disassembled or folded back around the first horizontal axis to the inner side 123, and the second column 112 is folded back around the second horizontal axis to the top of the frame body 14, with the first horizontal axis parallel to the second horizontal axis, so that in the storage position, the second column 112 is located on top of the first column 111.

[0293] In this embodiment, the second column 112 has an inner side 123 facing the rear of the elliptical trainer. When the elliptical trainer is folded, this inner side 123 faces the top of the frame 10 main body 14. To avoid interference between the handrail 20 and the rocker arm 32 and the inner side 123 during folding, both the handrail 20 and the rocker arm 32 are positioned on the second column 112, avoiding the outer side of the inner side 123. This ensures that the elliptical trainer maintains its normal movement structure in the unfolded state and does not affect the folding path of the upright 11 in the folded state, thereby improving the convenience of storage and assembly.

[0294] Specifically, when the elliptical trainer is switched to the storage position, firstly, the first column 111 folds backward at the first horizontal axis, so that its entire length is close to or near the inner side 123 of the second column 112. Since the armrest 20 and the rocker arm 32 are not located on this inner side 123, there is no interference during the folding process, and the first column 111 can fold smoothly along the predetermined path. Subsequently, the second column 112 folds backward again at the second horizontal axis, so that the second column 112 is entirely against the top of the frame body 14. The first horizontal axis and the second horizontal axis are parallel to each other, so that the above two folding actions are carried out in the same folding direction, thereby ensuring a simple folding trajectory, a smooth movement path, and no collision between the uprights 11. Since the second column 112 is located outside the first column 111 after the first upright is folded relative to the second upright, when both are fully folded, the second column 112 covers the top of the first column 111, thereby achieving a more compact stacking structure in the longitudinal direction.

[0295] In another embodiment, the first column 111 is detachably connected to the second column 112. When the elliptical trainer is switched to the storage position, firstly, the first column 111 is removed from the second column 112, and the contact position between the first column 111 and the second column 112 does not extend downward beyond the rotation position of the second column 112. Subsequently, the second column 112 folds backward at the second horizontal axis, so that the second column 112 and the first column 111 are close to the top of the frame body 14. Thus, in this embodiment, the first column 111 and the second column 112 are connected in a detachable manner, making the structure simpler. Moreover, this embodiment does not require limiting the length of the first column 111; if the length of the first column 111 is greater than the length of the second column 112, it will still not interfere with the folding of the second column 112.

[0296] Furthermore, the length of the first column 111 is less than or equal to the length of the second column 112, so that the first column 111 folds backward around the first transverse axis to the inner side 123. This ensures that the first column 111 is completely within the projection range of the second column 112 after folding, allowing the first column 111 to fit against the side of the second column 112 facing away from the frame body 14 without creating any protrusions, thus avoiding movement conflicts or structural collisions during the folding process. In addition, when the second column 112 is further folded backward around the second transverse axis to the top of the frame body 14, the two uprights 11 are arranged in a sequentially stacked manner. The shorter first column 111 can be stably stored in the receiving space 125 below the second column 112, improving the compactness after folding.

[0297] Specifically, referring to Figures 41 and 44, the frame 10 also includes a support rod 113 protruding from the top wall of the frame body 14, and a second column 112 is rotatably connected to the top of the support rod 113; in the storage position, the inner side 123 of the second column 112, the support rod 113 and the top wall of the frame body 14 enclose a receiving space 125, and the first column 111 is received in the receiving space 125.

[0298] In this embodiment, the support rod 113 not only serves as a rotating support for the second column 112, but also provides a clear storage location for the first column 111 through its enclosure with the second column 112 and the top wall of the frame body 14. Specifically, when the elliptical trainer is switched to the storage position, the second column 112 folds backward, and its rearward-facing inner side 123, together with the rearward side of the support rod 113 and the top wall of the frame body 14, forms a relatively closed receiving space 125. Since the folding direction of the first column 111 is the same as that of the second column 112, and the length of the first column 111 is less than or equal to the length of the second column 112, the first column 111 can be completely housed in the aforementioned receiving space 125 after folding backward around the first transverse axis. In this way, the folding and stacking effect of the upright rod 11 assembly is optimized, making the elliptical trainer more compact in the storage position, with a smaller overall volume, which is beneficial for saving space in transportation, storage, and home environments.

[0299] In one embodiment, referring to Figures 42 to 44, the lower end of the handrail 20 is rotatable and can slide up and down in conjunction with the rocker 32, so that the swing angle of the handrail 20 is smaller than the swing angle of the rocker 32.

[0300] In this embodiment, the lower end of the handrail 20 rotates and slides up and down with the rocker arm 32, causing the swing amplitude of the handrail 20 to be inconsistent with that of the rocker arm 32. In other words, when the handrail 20 is linked with the rocker arm 32, it is not rigidly fixed, but allows a certain range of up and down sliding at the connection point. When the rocker arm 32 produces a large swing angle, the height of the connection point between the handrail 20 and the rocker arm 32 changes and adjusts due to the up and down sliding, thereby absorbing part of the swing angle and making the handrail 20 produce a smaller swing angle. This avoids the excessive swing of the handrail of traditional elliptical trainers caused by the large swing angle of the rocker arm 32, ensuring that the handrail can always provide optimal support during exercise, so that users do not need to frequently adjust their posture or worry about falling.

[0301] Specifically, one of the handrail 20 and the rocker 32 is provided with a groove 34, and the other is provided with a protrusion 214; the groove 34 extends in a long strip shape, and the extension direction of the groove 34 is set at an angle to the front and back direction; the protrusion 214 slides along the extension direction of the groove 34.

[0302] In this embodiment, the groove 34 guides and restricts the protrusion 214 to slide along a certain trajectory, thereby limiting the swing angle of the armrest 20. The length of the groove 34 is set to control the vertical sliding range of the armrest within a certain range, avoiding instability caused by excessive or insufficient amplitude. Since the extension direction of the groove 34 is set at an angle to the front-back direction, the protrusion 214 will encounter a certain resistance during sliding. This resistance helps to limit the swing angle of the armrest 20 and prevent it from swinging excessively. The cooperation between the protrusion 214 and the groove 34 ensures precise positioning and sliding between the components, preventing misalignment or excessive slippage.

[0303] As shown in Figures 42 and 44, this embodiment uses a groove 34 on the armrest 20 and a protrusion 214 on the rocker arm 32 as an example for explanation. The armrest 20 includes a linkage section 33 and a handle 22. The handle 22 is used for gripping. One end of the linkage section 33 is rotatably connected to the second column 112, and the linkage section 33 has a groove 34. In the unfolded position, the linkage section 33 and the handle 22 are fixedly connected to realize the transmission connection between the handle 22 and the rocker arm 32. In the folded position, the handle 22 can be removed from the linkage section 33 to reduce the overall volume of the armrest, and the linkage section 33 folds backward together with the second column 112. Since the protrusion 214 remains within the groove 34, during the folding process, the linkage section 33 can stably fit against the second column 112, and the rocker 32, due to its structural feature of being rotatably connected to the second column 112, can move synchronously when the second column 112 is folded, so that the rocker 32 is close to the side of the frame body 14 and will not protrude from the frame body 14 in the front-back direction, thereby ensuring the compactness of the folded state.

[0304] In one embodiment, referring to Figures 39 to 44, the elliptical trainer further includes a transmission link 40 located on the front side of the second column 112; a handrail 20 is rotatably connected to one end of the second column 112 at a first hinge point 51; a rocker arm 32 is rotatably connected to the other end of the second column 112 at a second hinge point 52; one end of the transmission link 40 is rotatably connected to the handrail 20 at a third hinge point 53, and the opposite end is rotatably connected to the rocker arm 32 at a fourth hinge point 54; the first hinge point 51, the second hinge point 52, the third hinge point 53, and the fourth hinge point 54 are all spaced apart; on the handrail 20, the portion between the first hinge point 51 and the third hinge point 53 constitutes the first swing segment 31; on the rocker arm 32, the portion from the second hinge point 52 to the fourth hinge point 54 constitutes the second swing segment 211; the first swing segment 31 and the second swing segment 211 swing in the same direction.

[0305] In this embodiment, by setting the two ends of the transmission link 40 to be rotatably connected to the first swing segment 31 of the handrail 20 and the second swing segment 211 of the rocker arm 32 respectively, the handrail 20 and the rocker arm 32 are not directly connected, thus allowing the movement ratio between the handrail 20 and the rocker arm 32 to be flexibly adjusted. For example, the length of the first swing segment 31 can be greater than the length of the second swing segment 211, so that the swing angle of the handrail 20 is less than the swing angle of the rocker arm 32. In this case, the transmission link 40 has the function of reducing the swing angle of the handrail 20; or, the length of the first swing segment 31 can be equal to the length of the second swing segment 211. In this case, the swing angles of the handrail 20 and the rocker arm 32 are the same, and the transmission link 40 serves to connect the handrail 20 and the rocker arm 32, thus preventing the handrail 20 and the rocker arm 32 from being directly connected, making the upright 11 easier to fold. The swing directions of the first swing segment 31 and the second swing segment 211 are the same, so that the swing directions of the handrail 20 and the rocker arm 32 are opposite, to avoid the user from using the same hand and foot simultaneously.

[0306] Specifically, the swing angle of the handrail 20 is reduced by setting the length of the first swing segment 31 to be greater than the length of the second swing segment 211. In this process, the transmission link 40 acts like a lever, connecting the handrail 20 and the rocker arm 32. The difference in length between the first swing segment 31 and the second swing segment 211 determines the swing amplitude of the handrail 20. That is, this application reduces the swing angle of the handrail 20 using the lever principle. When a force is applied to a point, the effect of the force is proportional to the length of the lever arm. Simply put, the longer the lever arm, the smaller the rotation amplitude; conversely, the shorter the lever arm, the larger the rotation amplitude. Therefore, in this application's elliptical machine, the length of the first swing segment 31 is greater than the length of the second swing segment 211, so that the swing angle of the handrail 20 is smaller than the swing angle of the rocker arm 32.

[0307] In addition, the transmission link 40 is located on the front side of the second column 112. When the elliptical trainer is switched to the storage position, the transmission link 40 folds backward along with the second column 112 and remains on top of the second column 112 in the storage position, making the structure of the elliptical trainer more compact in the storage position.

[0308] In one embodiment, the armrest 20 further includes a handle 22 for a user to grip, the handle 22 being detachably and fixedly connected to the portion of the first swing segment 31 that avoids the first hinge point 51 and the third hinge point 53.

[0309] Specifically, the bottom of the means 22 is provided with two opposing and spaced-apart fixing plates, which are respectively fixedly connected to the opposite sides of the first swing segment 31 by threaded fasteners. Since the two fixing plates are connected to the first swing segment 31 at the same time, the force-bearing area of ​​the means 22 is significantly increased, thereby improving the structural strength of the connection part and making it less prone to breakage.

[0310] In traditional structures, the means 22 is typically fixed directly near the hinge point of the armrest 20. To ensure stability, welding is often used to attach the means 22 to the armrest tube corresponding to the hinge point. However, this welded structure is non-removable, preventing further folding or disassembly of the armrest, thus increasing the volume of the device during transport and storage. If a snap-fit ​​structure is used to achieve detachability, the snap-fit ​​components are more prone to fatigue damage or breakage due to the limited space and complex stress at the hinge point.

[0311] Thus, by installing the handle 22 on the first swing section 31 away from the hinge point and using two side fixing plates with threaded fastening, not only is the handle 22 easy to install and remove, but it also has good strength and stability. In this way, the armrest 20 can be detached and stored without affecting its strength, effectively reducing the overall storage volume of the elliptical trainer.

[0312] In one embodiment, the connecting rod 33 includes a connecting section 331 and a supporting section 332 fixedly connected to each other. The connecting section 331 is rotatably connected to the rocker member 32, and the supporting section 332 is rotatably connected to the crank member 31. The foot pedal module 60 is slidably connected to the supporting section 332 in the front-to-back direction. The included angle between the connecting section 331 and the supporting section 332 is less than or equal to 120° and greater than or equal to 60°. For example, the included angle between the connecting section 331 and the supporting section 332 can be 120°, 110°, 100°, 90°, 80°, 70°, 60°, etc.

[0313] In this embodiment, the connecting segment 331 is welded to the supporting segment 332. By limiting the angle between the connecting segment 331 and the supporting segment 332 to a range of 60° to 120°, not only is the forward and backward sliding distance of the pedal module 60 sufficient to meet the stride requirements of the human body, but it also effectively avoids interference between the user's foot and the connecting segment 331 during exercise, thus improving safety and comfort. Specifically, if the angle is greater than 120°, the connecting segment 331 will be excessively spread relative to the supporting segment 332, which will restrict the sliding stroke of the pedal module 60 and shorten the horizontal distance of the pedal module 60 during forward and backward sliding movements, thereby affecting the user's stride and exercise experience. If the angle is less than 60°, the distance between the connecting segment 331 and the pedal module 60 will be too small. During exercise, when the pedal module 60 slides relative to the supporting segment 332 to one end of the connecting segment 331, the user's foot is likely to touch the connecting segment 331, posing a risk of operational interference or collision, which is detrimental to exercise safety.

[0314] In one embodiment, the rocker member 32 further includes a first segment 321 and a second segment 322 that are fixedly connected to each other. The first segment 321 is rotatably connected to the second column 112, and the connecting segment 331 is rotatably connected to the second segment 322. The second segment 322 is set at an obtuse angle to the first segment 321 or is set in a straight line. When the second segment is set at an obtuse angle to the first segment, the second segment 322 extends from the first segment 321 in the vertical direction and is tilted backward.

[0315] In this embodiment, the first segment 321 is welded to the second segment 322, and the end of the first segment 321 is rotatably connected to the second column 112 to realize the overall swing of the rocker component 32. The connecting segment 331 is rotatably connected to the second segment 322, so that the transmission structure of the pedal module 60 can swing synchronously with the movement of the second segment 322. The second segment 322 forms an obtuse angle with the first segment 321, making the overall posture of the second segment 322 more rearward, thereby allowing the connecting segment 331 and the pedal module 60 to obtain a larger forward and backward movement space during movement. Furthermore, since the second segment 322 extends downward and tilts backward, the hinge point of the connecting segment 331 is moved backward, thereby geometrically increasing the effective sliding range of the pedal module 60 and ensuring a more natural and relaxed stride for the user. In another embodiment, the second segment and the first segment can be arranged in a straight line to simplify the manufacturing of the rocker component while ensuring a natural and relaxed stride for the user.

[0316] In one embodiment, the elliptical trainer further includes two support components 80, which are fixedly connected to opposite ends of the frame body 14 in the front-back direction. Each support component 80 includes at least a first base plate 81 and a second base plate 82 connected to each other. The first base plate 81 and the second base plate 82 are detachably and fixedly connected to the frame body 14, and the first base plate 81 and the second base plate 82 are located on both sides of the frame body 14 in the left-right direction. The distance between the first base plate 81 and the second base plate 82 gradually increases in the front-back direction from the frame body 14 toward the direction away from the frame body 14.

[0317] In this embodiment, the elliptical trainer also includes two support components 80, which are fixedly connected to the opposite ends of the frame body 14 in the front-back direction to improve the stability of the elliptical trainer during use.

[0318] Each support component 80 includes at least a first base plate 81 and a second base plate 82 connected to each other. The first base plate 81 and the second base plate 82 are detachably and fixedly connected to the frame body 14 and are located on opposite sides of the frame body 14 in the left-right direction. The distance between the first base plate 81 and the second base plate 82 gradually increases in the front-back direction from the frame body 14 away from it, i.e., they are arranged in an outward-expanding manner. From a top view, the first base plate 81, the second base plate 82, and the frame body 14 form a Y-shape. Thus, the support surface formed by the first base plate 81 and the second base plate 82 creates an outwardly expanding structure, increasing the projected area of ​​the center of gravity of the support component 80, thereby effectively improving the overall lateral stability of the elliptical exercise equipment and preventing it from tipping over due to left-right swaying during use. In some embodiments, any support component 80 further includes a third base plate, with the first base plate 81 and the second base plate 82 fixedly connected to opposite ends of the third base plate. The frame body 14 also has connecting plates at both ends in the front-rear direction. The third base plate is detachably fixed to the connecting plates by threaded connection, so as to realize the detachable fixed connection between the support component 80 and the frame body 14.

[0319] Furthermore, since the first base plate 81 and the second base plate 82 are fixedly connected to the frame body 14 by detachable methods such as threaded connections and snap-fits, the support component 80 can be quickly removed during transportation or storage, further reducing the overall size of the elliptical exercise equipment and facilitating handling and storage. At the same time, the detachable structure avoids the non-removable problems caused by integral welding, improving the product's assembly flexibility and maintenance convenience.

[0320] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An elliptical trainer, wherein, Includes the frame, crank-rocker assembly, and step assembly; The crank-rocker assembly includes a rocker element, a crank element, and a connecting rod. The upper ends of the rocker element and the crank element are rotatably connected to the frame. The front end of the connecting rod is rotatably connected to the rocker element, and the rear end of the connecting rod is rotatably connected to the crank element. The elliptical trainer also includes handrails and an amplitude reduction mechanism. The amplitude reduction mechanism has a connection point that can move up and down. The handrail is rotatably connected to the frame. The handrail is connected to the rocker arm through the amplitude reduction mechanism. The rocker arm pushes the connection point of the amplitude reduction mechanism to move up and down, so that the amplitude of the handrail is smaller than the amplitude of the rocker arm.

2. The elliptical trainer as described in claim 1, wherein, The step assembly includes a connector, a linkage rod, and a foot pedal located above the linkage rod. The foot pedal and the linkage rod are slidably connected back and forth. The connector is fixedly connected to the foot pedal. One end of the linkage rod is rotatably connected to the connector, and the other end of the linkage rod is rotatably connected to the lower end of the rocker or crank component. The connection point between the rocker and the frame is lower than or flush with the highest point of the foot pedal during the movement. Furthermore, the handrail is detachable or foldable relative to the rocking component.

3. The elliptical trainer as described in claim 1, wherein, It also includes a roller, which is mounted on the connecting rod, and the distance between the axis of the roller and the connection point between the crank and the frame is greater than the distance between the connection point between the crank and the frame and the connection point between the crank and the connecting rod. The foot pedal mechanism includes a foot pedal link and a foot pedal fixedly installed on the link. The front end of the foot pedal link is rotatably connected to the rocker member, and the rear end of the foot pedal link is slidably connected to the roller.

4. The elliptical trainer as described in claim 1, wherein, The frame includes a frame body and an upright connected to the front end of the frame body. The upright includes a first column and a second column. The bottom end of the second column is foldably connected to the top of the frame body around a horizontal axis. The bottom end of the first column is foldably or detachably connected to the top end of the second column around a horizontal axis. The upper end of the rocker is rotatably connected to the second column. The crank is rotatably connected to the frame body. The handrail is detachably or foldably rotatably connected to the second column at a position above the rocker. A fixed handle is installed on the second column.

5. An elliptical trainer, wherein, Includes frame, handrails, crank-rocker assembly, and amplitude-reducing connecting rod, among which, The handrail is rotatably connected to the frame at the first hinge point; The crank-rocker assembly is rotatably connected to the frame. The crank-rocker assembly includes a crank, a rocker element, and a connecting rod. The rocker element is rotatably connected to the frame at a second hinge point. The two ends of the connecting rod are rotatably connected to the crank and the rocker element, respectively. The foot pedal module is connected to the connecting rod and is also connected to the rocker element or the crank. One end of the amplitude-reducing linkage is rotatably connected to the handrail at the third hinge point, and the other end is rotatably connected to the rocker at the fourth hinge point. The first hinge point, the second hinge point, the third hinge point, and the fourth hinge point are all spaced apart. On the handrail, the portion between the first hinge point and the third hinge point constitutes a first swing segment; on the rocker arm, the portion from the second hinge point to the fourth hinge point constitutes a second swing segment; the first swing segment and the second swing segment swing in the same direction, and the length of the first swing segment is greater than the length of the second swing segment, so that the swing amplitude of the handrail is less than the swing amplitude of the rocker arm.

6. The elliptical trainer as described in claim 5, wherein, The length ratio of the first swing segment to the second swing segment is greater than or equal to 1.5 and less than or equal to 3.

5.

7. The elliptical trainer as described in claim 5, wherein, On the armrest, the third hinge point is located above the first hinge point and the foot pedal module; On the rocker, the fourth hinge point is located above the second hinge point and the foot pedal module.

8. The elliptical trainer as described in claim 7, wherein, The frame has a vertical pole and a connecting part, the vertical pole is located on the front side of the frame, and the second hinge point is located on the vertical pole; The connecting part is located on the rear side of the upright, and the first hinge point is located on the connecting part.

9. The elliptical trainer as described in claim 5, wherein, On the handrail, the third hinge point is located above the first hinge point; On the rocker element, the fourth hinge point is located above the second hinge point; The first hinge point is located in front of the second hinge point.

10. The elliptical trainer as described in claim 5, wherein, The third hinge point is located below the first hinge point, and the fourth hinge point is located below the second hinge point; The frame has a vertical pole and a protrusion. The protrusion protrudes from the top of the vertical pole on the side opposite to the foot pedal module. The first hinge point is located on the protrusion, and the second hinge point is located on the vertical pole.

11. The elliptical trainer as described in claim 8, wherein, The first hinge point and the second hinge point are offset in the vertical direction, and the second hinge point is located within the projection range of the first swing segment on the swing member.

12. The elliptical trainer as described in claim 5, wherein, The frame has a vertical pole, and both the first hinge point and the second hinge point are located on the vertical pole, with the first hinge point located above the second hinge point; The handrail also includes a handle for gripping, the handle being connected to the first swing segment and set at an angle, and the third hinge point being located at the end of the first swing segment away from the handle; The rocker component further includes a connecting section for hinged connection of the connecting rod. The connecting section is connected to the second rocker segment and is set at an angle. The fourth hinge point is located at the end of the second rocker segment away from the connecting section. The first swing segment extends in the same direction as the second swing segment.

13. The elliptical trainer as described in claim 12, wherein, Both the first swing segment and the second swing segment extend toward the side of the upright that is away from the foot pedal module, and the amplitude reduction link is located on the front side of the upright.

14. The elliptical trainer as described in claim 5, wherein, The crank rocker assembly also includes an adjustment rod, one end of which is hinged to the rocker and the other end is fixedly connected to the pedal module, so that when the rocker swings backward to its limit position, a portion of the pedal module extends beyond the connecting rod.

15. The elliptical trainer as described in claim 5, wherein, It also includes a roller, which is mounted on the connecting rod, and the distance between the axis of the roller and the connection point between the crank and the frame is greater than the distance between the connection point between the crank and the frame and the connection point between the crank and the connecting rod. The foot pedal mechanism includes a foot pedal link and a foot pedal fixedly installed on the link. The front end of the foot pedal link is rotatably connected to the rocker member, and the rear end of the foot pedal link is slidably connected to the roller.

16. The elliptical trainer as described in claim 5, wherein, The frame includes a frame body and an upright connected to the front end of the frame body. The upright includes a first column and a second column. The bottom end of the second column is foldably connected to the top of the frame body around a horizontal axis. The bottom end of the first column is foldably or detachably connected to the top end of the second column around a horizontal axis. The upper end of the rocker is rotatably connected to the second column. The crank is rotatably connected to the frame body. The handrail is detachably or foldably rotatably connected to the second column at a position above the rocker. A fixed handle is installed on the second column.

17. An elliptical trainer, wherein, include A frame, the frame including uprights extending longitudinally; The motion module includes two motion components disposed on opposite sides of the frame in the left-right direction; each motion component includes a crank-rocker structure and a foot pedal; the crank-rocker structure includes a swing member, a connecting rod, and a crank; the swing member is rotatably connected to the upright; the two ends of the connecting rod are rotatably connected to the swing member and the crank, respectively, and the crank is rotatably connected to the frame; the foot pedal is connected to the connecting rod and is drively connected to the swing member or the crank. The handrail is rotatably connected to the upright, and the lower end of the handrail is rotatably and slidably engaged with the swinging member.

18. The elliptical trainer as claimed in claim 17, wherein, One of the handrail and the swing member is provided with a groove, and the other is provided with a protrusion; the groove extends in a long strip shape, and the extension direction of the groove is set at an angle to the front-back direction; the protrusion slides along the extension direction of the groove; the left-right direction, the longitudinal direction, and the front-back direction are perpendicular to each other.

19. The elliptical trainer as described in claim 18, wherein, The handrail is rod-shaped, and when the handrail has a groove, the length direction of the groove is parallel to the length direction of the handrail.

20. The elliptical trainer as claimed in claim 17, wherein, The swing member is rotatably connected to the upright at a first connection point; the swing member is slidably engaged with the handrail at a second connection point; the second connection point is located adjacent to the first connection point and is located below the first connection point.

21. The elliptical trainer as described in claim 20, wherein, One end of the connecting rod is rotatably connected to the crank, and the other end is rotatably connected to the oscillating member at a third connection point, the second connection point being located between the first connection point and the third connection point.

22. The elliptical trainer as claimed in claim 21, wherein, The motion component also includes an adjustment rod; one end of the adjustment rod is fixedly connected to the foot pedal, and the other end is rotatably connected to the swinging component; the foot pedal is slidably connected to the connecting rod.

23. The elliptical trainer as described in claim 22, wherein, The adjusting rod and the swing member are rotatably connected to the fourth connection point; the fourth connection point and the first connection point are respectively located at the two ends of the swing member in the length direction; the second connection point and the third connection point are located between the first connection point and the fourth connection point.

24. The elliptical trainer as described in claim 17, wherein, The handrail includes a connector, a first connecting segment, and a second connecting segment. The connector is rotatably connected to the second connecting rod, and the rotation direction of the connector is parallel to the left-right direction. The first connecting segment and the second connecting segment are fixedly connected to the two ends of the connector in the longitudinal direction, and the first connecting segment and the second connecting segment are set at an obtuse angle.

25. The elliptical trainer as described in claim 17, wherein, It also includes a roller, which is mounted on the connecting rod, and the distance between the axis of the roller and the connection point between the crank and the frame is greater than the distance between the connection point between the crank and the frame and the connection point between the crank and the connecting rod. The foot pedal mechanism includes a foot pedal link and a foot pedal fixedly installed on the foot pedal link. The front end of the foot pedal link is rotatably connected to the rocker member, and the rear end of the foot pedal link is slidably connected to the roller.

26. The elliptical trainer as described in claim 17, wherein, The frame includes a frame body and an upright connected to the front end of the frame body. The upright includes a first column and a second column. The bottom end of the second column is foldably connected to the top of the frame body around a horizontal axis. The bottom end of the first column is foldably or detachably connected to the top end of the second column around a horizontal axis. The upper end of the rocker is rotatably connected to the second column. The crank is rotatably connected to the frame body. The handrail is detachably or foldably rotatably connected to the second column at a position above the rocker. A fixed handle is installed on the second column.

27. An elliptical trainer, wherein, The device includes a frame, handrails, a crank-rocker assembly, and a damping mechanism. The crank-rocker assembly includes a crank component, a rocker component, and a connecting rod. The crank component and the rocker component are rotatably connected to the frame. The two ends of the connecting rod are rotatably connected to the crank component and the rocker component, respectively. The handrail is rotatably connected to the frame. The amplitude reduction mechanism includes a first transmission wheel, a second transmission wheel, and a transmission component. The first transmission wheel is fixedly connected to the handrail assembly, and the second transmission wheel is fixedly connected to the swing component. The transmission component drives the first transmission wheel and the second transmission wheel. The transmission ratio between the second transmission wheel and the first transmission wheel is greater than 1, so that the swing angle of the handrail assembly is smaller than the swing angle of the swing component.

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